65610515005 has 32 divisors (see below), whose sum is σ = 90568396800. Its totient is φ = 44696897280.

The previous prime is 65610514999. The next prime is 65610515017. The reversal of 65610515005 is 50051501656.

It is not a de Polignac number, because 65610515005 - 2³ = 65610514997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3373860 + ... + 3393250.

It is an arithmetic number, because the mean of its divisors is an integer number (2830262400).

Almost surely, 2^65610515005 is an apocalyptic number.

It is an amenable number.

65610515005 is a deficient number, since it is larger than the sum of its proper divisors (24957881795).

65610515005 is a wasteful number, since it uses less digits than its factorization.

65610515005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20029.

The product of its (nonzero) digits is 22500, while the sum is 34.

The spelling of 65610515005 in words is "sixty-five billion, six hundred ten million, five hundred fifteen thousand, five".