8216059557 has 16 divisors (see below), whose sum is σ = 11601358272. Its totient is φ = 5154190080.

The previous prime is 8216059543. The next prime is 8216059567. The reversal of 8216059557 is 7559506128.

It is a happy number.

It is not a de Polignac number, because 8216059557 - 2⁴ = 8216059541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8216059567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 329203 + ... + 353279.

It is an arithmetic number, because the mean of its divisors is an integer number (725084892).

Almost surely, 2^8216059557 is an apocalyptic number.

It is an amenable number.

8216059557 is a deficient number, since it is larger than the sum of its proper divisors (3385298715).

8216059557 is a wasteful number, since it uses less digits than its factorization.

8216059557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30788.

The product of its (nonzero) digits is 756000, while the sum is 48.

The square root of 8216059557 is about 90642.4820765628. The cubic root of 8216059557 is about 2017.8452628073.

The spelling of 8216059557 in words is "eight billion, two hundred sixteen million, fifty-nine thousand, five hundred fifty-seven".