265645511352140 has 24 divisors (see below), whose sum is σ = 559065672717552. Its totient is φ = 106027709516480.

The previous prime is 265645511352139. The next prime is 265645511352167. The reversal of 265645511352140 is 41253115546562.

It is a super-2 number, since 2×265645511352140² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14405929574 + ... + 14405948013.

It is an arithmetic number, because the mean of its divisors is an integer number (23294403029898).

Almost surely, 2^{265645511352140} is an apocalyptic number.

265645511352140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265645511352140 is an abundant number, since it is smaller than the sum of its proper divisors (293420161365412).

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

265645511352140 is a wasteful number, since it uses less digits than its factorization.

265645511352140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28811878057 (or 28811878055 counting only the distinct ones).

The product of its (nonzero) digits is 4320000, while the sum is 50.

The spelling of 265645511352140 in words is "two hundred sixty-five trillion, six hundred forty-five billion, five hundred eleven million, three hundred fifty-two thousand, one hundred forty".