65535988953556 has 48 divisors (see below), whose sum is σ = 125194616059968. Its totient is φ = 29769932275200.

The previous prime is 65535988953517. The next prime is 65535988953599.

65535988953556 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×65535988953556² (a number of 28 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 65535988953556.

It is a congruent number.

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, 2055499191 + ... + 2055531073.

It is an arithmetic number, because the mean of its divisors is an integer number (2608221167916).

Almost surely, 2^{65535988953556} is an apocalyptic number.

It is an amenable number.

65535988953556 is a deficient number, since it is larger than the sum of its proper divisors (59658627106412).

65535988953556 is a wasteful number, since it uses less digits than its factorization.

65535988953556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60472 (or 60470 counting only the distinct ones).

The product of its digits is 26244000000, while the sum is 82.

The spelling of 65535988953556 in words is "sixty-five trillion, five hundred thirty-five billion, nine hundred eighty-eight million, nine hundred fifty-three thousand, five hundred fifty-six".