65001550656516 has 24 divisors (see below), whose sum is σ = 151670482716480. Its totient is φ = 21667155287712.

The previous prime is 65001550656491. The next prime is 65001550656557. The reversal of 65001550656516 is 61565605510056.

It is a super-2 number, since 2×65001550656516² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7403430 + ... + 13594626.

It is an arithmetic number, because the mean of its divisors is an integer number (6319603446520).

Almost surely, 2^{65001550656516} is an apocalyptic number.

It is an amenable number.

65001550656516 is an abundant number, since it is smaller than the sum of its proper divisors (86668932059964).

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

65001550656516 is a wasteful number, since it uses less digits than its factorization.

65001550656516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7066123 (or 7066121 counting only the distinct ones).

The product of its (nonzero) digits is 4050000, while the sum is 51.

The spelling of 65001550656516 in words is "sixty-five trillion, one billion, five hundred fifty million, six hundred fifty-six thousand, five hundred sixteen".