265148036520 has 64 divisors (see below), whose sum is σ = 795913456320. Its totient is φ = 70664423424.

The previous prime is 265148036369. The next prime is 265148036557. The reversal of 265148036520 is 25630841562.

It is a super-2 number, since 2×265148036520² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 447382 + ... + 854661.

It is an arithmetic number, because the mean of its divisors is an integer number (12436147755).

Almost surely, 2^265148036520 is an apocalyptic number.

265148036520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265148036520 is an abundant number, since it is smaller than the sum of its proper divisors (530765419800).

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

265148036520 is a wasteful number, since it uses less digits than its factorization.

265148036520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303754 (or 1303750 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 265148036520 in words is "two hundred sixty-five billion, one hundred forty-eight million, thirty-six thousand, five hundred twenty".