11564582057 has 8 divisors (see below), whose sum is σ = 13539023232. Its totient is φ = 9670730400.

The previous prime is 11564582021. The next prime is 11564582069. The reversal of 11564582057 is 75028546511.

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

It is a cyclic number.

It is not a de Polignac number, because 11564582057 - 2⁸ = 11564581801 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11564581999 and 11564582017.

It is not an unprimeable number, because it can be changed into a prime (11564582077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20147069 + ... + 20147642.

It is an arithmetic number, because the mean of its divisors is an integer number (1692377904).

Almost surely, 2^11564582057 is an apocalyptic number.

It is an amenable number.

11564582057 is a deficient number, since it is larger than the sum of its proper divisors (1974441175).

11564582057 is an equidigital number, since it uses as much as digits as its factorization.

11564582057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40294759.

The product of its (nonzero) digits is 336000, while the sum is 44.

The spelling of 11564582057 in words is "eleven billion, five hundred sixty-four million, five hundred eighty-two thousand, fifty-seven".