56673777737665 has 16 divisors (see below), whose sum is σ = 74193116869440. Its totient is φ = 41216187539520.

The previous prime is 56673777737663. The next prime is 56673777737671.

56673777737665 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56673777737665 - 2¹ = 56673777737663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56673777737663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11744694 + ... + 15851983.

It is an arithmetic number, because the mean of its divisors is an integer number (4637069804340).

Almost surely, 2^{56673777737665} is an apocalyptic number.

56673777737665 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56673777737665 is a deficient number, since it is larger than the sum of its proper divisors (17519339131775).

56673777737665 is a wasteful number, since it uses less digits than its factorization.

56673777737665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27634032.

The product of its digits is 34306448400, while the sum is 82.

The spelling of 56673777737665 in words is "fifty-six trillion, six hundred seventy-three billion, seven hundred seventy-seven million, seven hundred thirty-seven thousand, six hundred sixty-five".