266247970560 has 864 divisors, whose sum is σ = 1129452000768. Its totient is φ = 56981422080.

The previous prime is 266247970511. The next prime is 266247970561. The reversal of 266247970560 is 65079742662.

266247970560 is a `hidden beast` number, since 2 + 6 + 6 + 2 + 4 + 7 + 9 + 70 + 560 = 666.

266247970560 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 266247970497 and 266247970506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266247970561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 37885767 + ... + 37892793.

It is an arithmetic number, because the mean of its divisors is an integer number (1307236112).

Almost surely, 2^266247970560 is an apocalyptic number.

266247970560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266247970560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (564726000384).

266247970560 is an abundant number, since it is smaller than the sum of its proper divisors (863204030208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

266247970560 is a wasteful number, since it uses less digits than its factorization.

266247970560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7101 (or 7084 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 54.

The spelling of 266247970560 in words is "two hundred sixty-six billion, two hundred forty-seven million, nine hundred seventy thousand, five hundred sixty".