56655665650515 has 16 divisors (see below), whose sum is σ = 90738905565600. Its totient is φ = 30186408172032.

The previous prime is 56655665650439. The next prime is 56655665650609. The reversal of 56655665650515 is 51505656655665.

It is a happy number.

It is not a de Polignac number, because 56655665650515 - 2⁷ = 56655665650387 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, 1871661960 + ... + 1871692229.

It is an arithmetic number, because the mean of its divisors is an integer number (5671181597850).

Almost surely, 2^{56655665650515} is an apocalyptic number.

56655665650515 is a deficient number, since it is larger than the sum of its proper divisors (34083239915085).

56655665650515 is a wasteful number, since it uses less digits than its factorization.

56655665650515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3743355206.

The product of its (nonzero) digits is 607500000, while the sum is 66.

The spelling of 56655665650515 in words is "fifty-six trillion, six hundred fifty-five billion, six hundred sixty-five million, six hundred fifty thousand, five hundred fifteen".