6416566757057 has 4 divisors (see below), whose sum is σ = 6416732602800. Its totient is φ = 6416400911316.

The previous prime is 6416566757047. The next prime is 6416566757077. The reversal of 6416566757057 is 7507576656146.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6416566757057 - 2³⁸ = 6141688850113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6416566756984 and 6416566757002.

It is not an unprimeable number, because it can be changed into a prime (6416566757047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82864823 + ... + 82942220.

It is an arithmetic number, because the mean of its divisors is an integer number (1604183150700).

Almost surely, 2^{6416566757057} is an apocalyptic number.

It is an amenable number.

6416566757057 is a deficient number, since it is larger than the sum of its proper divisors (165845743).

6416566757057 is a wasteful number, since it uses less digits than its factorization.

6416566757057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165845742.

The product of its (nonzero) digits is 222264000, while the sum is 65.

The spelling of 6416566757057 in words is "six trillion, four hundred sixteen billion, five hundred sixty-six million, seven hundred fifty-seven thousand, fifty-seven".