7057020560721 has 32 divisors (see below), whose sum is σ = 10028384391168. Its totient is φ = 4398833122560.

The previous prime is 7057020560713. The next prime is 7057020560743. The reversal of 7057020560721 is 1270650207507.

It is not a de Polignac number, because 7057020560721 - 2³ = 7057020560713 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7057020560321) 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, 18826236 + ... + 19197426.

It is an arithmetic number, because the mean of its divisors is an integer number (313387012224).

Almost surely, 2^{7057020560721} is an apocalyptic number.

It is an amenable number.

7057020560721 is a deficient number, since it is larger than the sum of its proper divisors (2971363830447).

7057020560721 is a wasteful number, since it uses less digits than its factorization.

7057020560721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373661.

The product of its (nonzero) digits is 205800, while the sum is 42.

The spelling of 7057020560721 in words is "seven trillion, fifty-seven billion, twenty million, five hundred sixty thousand, seven hundred twenty-one".