265041515016 has 128 divisors (see below), whose sum is σ = 744086246400. Its totient is φ = 87405350400.

The previous prime is 265041514987. The next prime is 265041515027. The reversal of 265041515016 is 610515140562.

265041515016 is a `hidden beast` number, since 2 + 65 + 0 + 41 + 51 + 501 + 6 = 666.

It is a super-3 number, since 3×265041515016³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34181796 + ... + 34189548.

It is an arithmetic number, because the mean of its divisors is an integer number (5813173800).

Almost surely, 2^265041515016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265041515016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372043123200).

265041515016 is an abundant number, since it is smaller than the sum of its proper divisors (479044731384).

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

265041515016 is a wasteful number, since it uses less digits than its factorization.

265041515016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9436 (or 9426 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

Adding to 265041515016 its reverse (610515140562), we get a palindrome (875556655578).

The spelling of 265041515016 in words is "two hundred sixty-five billion, forty-one million, five hundred fifteen thousand, sixteen".