265162515760 has 80 divisors (see below), whose sum is σ = 634086281952. Its totient is φ = 103048243200.

The previous prime is 265162515757. The next prime is 265162515773. The reversal of 265162515760 is 67515261562.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×265162515760² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 265162515760.

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, 1980540 + ... + 2110180.

Almost surely, 2^265162515760 is an apocalyptic number.

265162515760 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 265162515760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317043140976).

265162515760 is an abundant number, since it is smaller than the sum of its proper divisors (368923766192).

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

265162515760 is a wasteful number, since it uses less digits than its factorization.

265162515760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130382 (or 130376 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 46.

The spelling of 265162515760 in words is "two hundred sixty-five billion, one hundred sixty-two million, five hundred fifteen thousand, seven hundred sixty".