8056720057 has 8 divisors (see below), whose sum is σ = 8336275200. Its totient is φ = 7777280784.

The previous prime is 8056720039. The next prime is 8056720097. The reversal of 8056720057 is 7500276508.

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

It is a de Polignac number, because none of the positive numbers 2^k-8056720057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8056720027) 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, 126778 + ... + 179404.

It is an arithmetic number, because the mean of its divisors is an integer number (1042034400).

Almost surely, 2^8056720057 is an apocalyptic number.

It is an amenable number.

8056720057 is a deficient number, since it is larger than the sum of its proper divisors (279555143).

8056720057 is a wasteful number, since it uses less digits than its factorization.

8056720057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57935.

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 8056720057 is about 89759.2338258299. The cubic root of 8056720057 is about 2004.7155444987.

The spelling of 8056720057 in words is "eight billion, fifty-six million, seven hundred twenty thousand, fifty-seven".