16572117159 has 64 divisors (see below), whose sum is σ = 27931115520. Its totient is φ = 9754439904.

The previous prime is 16572117143. The next prime is 16572117169. The reversal of 16572117159 is 95171127561.

16572117159 is a `hidden beast` number, since 1 + 6 + 572 + 1 + 1 + 71 + 5 + 9 = 666.

It is not a de Polignac number, because 16572117159 - 2⁴ = 16572117143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16572117169) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 641242 + ... + 666584.

It is an arithmetic number, because the mean of its divisors is an integer number (436423680).

Almost surely, 2^16572117159 is an apocalyptic number.

16572117159 is a deficient number, since it is larger than the sum of its proper divisors (11358998361).

16572117159 is an equidigital number, since it uses as much as digits as its factorization.

16572117159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25400 (or 25382 counting only the distinct ones).

The product of its digits is 132300, while the sum is 45.

The spelling of 16572117159 in words is "sixteen billion, five hundred seventy-two million, one hundred seventeen thousand, one hundred fifty-nine".