65577616215 has 64 divisors (see below), whose sum is σ = 115378421760. Its totient is φ = 31657633920.

The previous prime is 65577616201. The next prime is 65577616243. The reversal of 65577616215 is 51261677556.

It is not a de Polignac number, because 65577616215 - 2⁵ = 65577616183 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 (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6359754 + ... + 6370056.

It is an arithmetic number, because the mean of its divisors is an integer number (1802787840).

Almost surely, 2^65577616215 is an apocalyptic number.

65577616215 is a deficient number, since it is larger than the sum of its proper divisors (49800805545).

65577616215 is a wasteful number, since it uses less digits than its factorization.

65577616215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11324.

The product of its digits is 2646000, while the sum is 51.

The spelling of 65577616215 in words is "sixty-five billion, five hundred seventy-seven million, six hundred sixteen thousand, two hundred fifteen".