56640892306 has 8 divisors (see below), whose sum is σ = 85630325760. Its totient is φ = 28097450388.

The previous prime is 56640892291. The next prime is 56640892307. The reversal of 56640892306 is 60329804665.

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

It is a self number, because there is not a number n which added to its sum of digits gives 56640892306.

It is not an unprimeable number, because it can be changed into a prime (56640892307) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 111497566 + ... + 111498073.

It is an arithmetic number, because the mean of its divisors is an integer number (10703790720).

Almost surely, 2^56640892306 is an apocalyptic number.

56640892306 is a deficient number, since it is larger than the sum of its proper divisors (28989433454).

56640892306 is a wasteful number, since it uses less digits than its factorization.

56640892306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222995768.

The product of its (nonzero) digits is 1866240, while the sum is 49.

The spelling of 56640892306 in words is "fifty-six billion, six hundred forty million, eight hundred ninety-two thousand, three hundred six".