266662444660 has 24 divisors (see below), whose sum is σ = 565224700320. Its totient is φ = 105668108064.

The previous prime is 266662444621. The next prime is 266662444667. The reversal of 266662444660 is 66444266662.

It is a super-2 number, since 2×266662444660² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 266662444598 and 266662444607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266662444667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62302170 + ... + 62306449.

It is an arithmetic number, because the mean of its divisors is an integer number (23551029180).

Almost surely, 2^266662444660 is an apocalyptic number.

266662444660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266662444660 is an abundant number, since it is smaller than the sum of its proper divisors (298562255660).

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

266662444660 is a wasteful number, since it uses less digits than its factorization.

266662444660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124608735 (or 124608733 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 52.

The spelling of 266662444660 in words is "two hundred sixty-six billion, six hundred sixty-two million, four hundred forty-four thousand, six hundred sixty".