56535660020165 has 8 divisors (see below), whose sum is σ = 67850458795800. Its totient is φ = 45223416835072.

The previous prime is 56535660020123. The next prime is 56535660020237. The reversal of 56535660020165 is 56102006653565.

It can be written as a sum of positive squares in 4 ways, for example, as 6053597684836 + 50482062335329 = 2460406^2 + 7105073^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56535660020165 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 638848964 + ... + 638937453.

It is an arithmetic number, because the mean of its divisors is an integer number (8481307349475).

Almost surely, 2^{56535660020165} is an apocalyptic number.

It is an amenable number.

56535660020165 is a deficient number, since it is larger than the sum of its proper divisors (11314798775635).

56535660020165 is a wasteful number, since it uses less digits than its factorization.

56535660020165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277795271.

The product of its (nonzero) digits is 4860000, while the sum is 50.

The spelling of 56535660020165 in words is "fifty-six trillion, five hundred thirty-five billion, six hundred sixty million, twenty thousand, one hundred sixty-five".