6651500116065 has 32 divisors (see below), whose sum is σ = 12288132192000. Its totient is φ = 3009338486784.

The previous prime is 6651500116031. The next prime is 6651500116067. The reversal of 6651500116065 is 5606110051566.

It is not a de Polignac number, because 6651500116065 - 2¹⁵ = 6651500083297 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6651500116067) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 326523940 + ... + 326544309.

It is an arithmetic number, because the mean of its divisors is an integer number (384004131000).

Almost surely, 2^{6651500116065} is an apocalyptic number.

It is an amenable number.

6651500116065 is a deficient number, since it is larger than the sum of its proper divisors (5636632075935).

6651500116065 is a wasteful number, since it uses less digits than its factorization.

6651500116065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653068361.

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 6651500116065 in words is "six trillion, six hundred fifty-one billion, five hundred million, one hundred sixteen thousand, sixty-five".