265720658056 has 16 divisors (see below), whose sum is σ = 569401410240. Its totient is φ = 113880282000.

The previous prime is 265720658051. The next prime is 265720658069. The reversal of 265720658056 is 650856027562.

It is a junction number, because it is equal to n+sod(n) for n = 265720657994 and 265720658012.

It is not an unprimeable number, because it can be changed into a prime (265720658051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2372505820 + ... + 2372505931.

It is an arithmetic number, because the mean of its divisors is an integer number (35587588140).

Almost surely, 2^265720658056 is an apocalyptic number.

It is an amenable number.

265720658056 is an abundant number, since it is smaller than the sum of its proper divisors (303680752184).

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

265720658056 is a wasteful number, since it uses less digits than its factorization.

265720658056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4745011764 (or 4745011760 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 52.

The spelling of 265720658056 in words is "two hundred sixty-five billion, seven hundred twenty million, six hundred fifty-eight thousand, fifty-six".