56510510230665 has 64 divisors (see below), whose sum is σ = 100543190630400. Its totient is φ = 30114926718912.

The previous prime is 56510510230651. The next prime is 56510510230711. The reversal of 56510510230665 is 56603201501565.

56510510230665 is a `hidden beast` number, since 5 + 6 + 51 + 0 + 510 + 23 + 0 + 6 + 65 = 666.

It is not a de Polignac number, because 56510510230665 - 2¹¹ = 56510510228617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 56510510230665.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1629513796 + ... + 1629548474.

It is an arithmetic number, because the mean of its divisors is an integer number (1570987353600).

Almost surely, 2^{56510510230665} is an apocalyptic number.

It is an amenable number.

56510510230665 is a deficient number, since it is larger than the sum of its proper divisors (44032680399735).

56510510230665 is a wasteful number, since it uses less digits than its factorization.

56510510230665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43963 (or 43957 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 45.

The spelling of 56510510230665 in words is "fifty-six trillion, five hundred ten billion, five hundred ten million, two hundred thirty thousand, six hundred sixty-five".