56641588514665 has 32 divisors (see below), whose sum is σ = 85491627883776. Its totient is φ = 34996572764160.

The previous prime is 56641588514627. The next prime is 56641588514669.

56641588514665 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56641588514665 - 2³⁷ = 56504149561193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56641588514594 and 56641588514603.

It is not an unprimeable number, because it can be changed into a prime (56641588514669) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 650934412 + ... + 651021421.

It is an arithmetic number, because the mean of its divisors is an integer number (2671613371368).

Almost surely, 2^{56641588514665} is an apocalyptic number.

56641588514665 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56641588514665 is a deficient number, since it is larger than the sum of its proper divisors (28850039369111).

56641588514665 is a wasteful number, since it uses less digits than its factorization.

56641588514665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301955969.

The product of its digits is 829440000, while the sum is 70.

The spelling of 56641588514665 in words is "fifty-six trillion, six hundred forty-one billion, five hundred eighty-eight million, five hundred fourteen thousand, six hundred sixty-five".