65437852956 has 96 divisors (see below), whose sum is σ = 194490293760. Its totient is φ = 16670582784.

The previous prime is 65437852951. The next prime is 65437852993. The reversal of 65437852956 is 65925873456.

It is a super-2 number, since 2×65437852956² (a number of 22 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 65437852956.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65437852951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1178785 + ... + 1233048.

It is an arithmetic number, because the mean of its divisors is an integer number (2025940560).

Almost surely, 2^65437852956 is an apocalyptic number.

It is an amenable number.

65437852956 is an abundant number, since it is smaller than the sum of its proper divisors (129052440804).

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

65437852956 is a wasteful number, since it uses less digits than its factorization.

65437852956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2411883 (or 2411881 counting only the distinct ones).

The product of its digits is 54432000, while the sum is 60.

The spelling of 65437852956 in words is "sixty-five billion, four hundred thirty-seven million, eight hundred fifty-two thousand, nine hundred fifty-six".