65056550515 has 16 divisors (see below), whose sum is σ = 85960880640. Its totient is φ = 46871665120.

The previous prime is 65056550491. The next prime is 65056550543. The reversal of 65056550515 is 51505565056.

It is a de Polignac number, because none of the positive numbers 2^k-65056550515 is a prime.

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, 5521435 + ... + 5533204.

It is an arithmetic number, because the mean of its divisors is an integer number (5372555040).

Almost surely, 2^65056550515 is an apocalyptic number.

65056550515 is a deficient number, since it is larger than the sum of its proper divisors (20904330125).

65056550515 is a wasteful number, since it uses less digits than its factorization.

65056550515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11054762.

The product of its (nonzero) digits is 562500, while the sum is 43.

The spelling of 65056550515 in words is "sixty-five billion, fifty-six million, five hundred fifty thousand, five hundred fifteen".