56606515778 has 8 divisors (see below), whose sum is σ = 87648798720. Its totient is φ = 27390249540.

The previous prime is 56606515741. The next prime is 56606515811. The reversal of 56606515778 is 87751560665.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 456504098 + ... + 456504221.

It is an arithmetic number, because the mean of its divisors is an integer number (10956099840).

Almost surely, 2^56606515778 is an apocalyptic number.

56606515778 is a deficient number, since it is larger than the sum of its proper divisors (31042282942).

56606515778 is a wasteful number, since it uses less digits than its factorization.

56606515778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913008352.

The product of its (nonzero) digits is 10584000, while the sum is 56.

The spelling of 56606515778 in words is "fifty-six billion, six hundred six million, five hundred fifteen thousand, seven hundred seventy-eight".