56601610665 has 8 divisors (see below), whose sum is σ = 90562577088. Its totient is φ = 30187525680.

The previous prime is 56601610627. The next prime is 56601610729.

56601610665 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 56601610665 - 2¹² = 56601606569 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1886720341 + ... + 1886720370.

It is an arithmetic number, because the mean of its divisors is an integer number (11320322136).

Almost surely, 2^56601610665 is an apocalyptic number.

It is an amenable number.

56601610665 is a deficient number, since it is larger than the sum of its proper divisors (33960966423).

56601610665 is a wasteful number, since it uses less digits than its factorization.

56601610665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3773440719.

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 56601610665 in words is "fifty-six billion, six hundred one million, six hundred ten thousand, six hundred sixty-five".