16157173185729 has 12 divisors (see below), whose sum is σ = 24566462154000. Its totient is φ = 10204530432984.

The previous prime is 16157173185689. The next prime is 16157173185757. The reversal of 16157173185729 is 92758137175161.

16157173185729 is a `hidden beast` number, since 1 + 6 + 1 + 57 + 1 + 7 + 3 + 1 + 8 + 572 + 9 = 666.

16157173185729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16157173185729 - 2⁸ = 16157173185473 is a prime.

It is a super-2 number, since 2×16157173185729² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16157173185779) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47243196279 + ... + 47243196620.

It is an arithmetic number, because the mean of its divisors is an integer number (2047205179500).

Almost surely, 2^{16157173185729} is an apocalyptic number.

16157173185729 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

16157173185729 is a deficient number, since it is larger than the sum of its proper divisors (8409288968271).

16157173185729 is a wasteful number, since it uses less digits than its factorization.

16157173185729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94486392924 (or 94486392921 counting only the distinct ones).

The product of its digits is 22226400, while the sum is 63.

The spelling of 16157173185729 in words is "sixteen trillion, one hundred fifty-seven billion, one hundred seventy-three million, one hundred eighty-five thousand, seven hundred twenty-nine".