266930313720 has 512 divisors, whose sum is σ = 1034075289600. Its totient is φ = 53652160512.

The previous prime is 266930313709. The next prime is 266930313761. The reversal of 266930313720 is 27313039662.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 19799622 + ... + 19813098.

It is an arithmetic number, because the mean of its divisors is an integer number (2019678300).

Almost surely, 2^266930313720 is an apocalyptic number.

266930313720 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 266930313720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (517037644800).

266930313720 is an abundant number, since it is smaller than the sum of its proper divisors (767144975880).

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

266930313720 is a wasteful number, since it uses less digits than its factorization.

266930313720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13607 (or 13603 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 42.

The spelling of 266930313720 in words is "two hundred sixty-six billion, nine hundred thirty million, three hundred thirteen thousand, seven hundred twenty".