16161057 has 12 divisors (see below), whose sum is σ = 25466064. Its totient is φ = 9794520.

The previous prime is 16161043. The next prime is 16161059. The reversal of 16161057 is 75016161.

16161057 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 16161057 - 2¹⁰ = 16160033 is a prime.

It is a super-2 number, since 2×16161057² = 522359526714498, which contains 22 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 16161057.

It is not an unprimeable number, because it can be changed into a prime (16161059) 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, 81523 + ... + 81720.

It is an arithmetic number, because the mean of its divisors is an integer number (2122172).

Almost surely, 2^16161057 is an apocalyptic number.

It is an amenable number.

16161057 is a deficient number, since it is larger than the sum of its proper divisors (9305007).

16161057 is a wasteful number, since it uses less digits than its factorization.

16161057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163260 (or 163257 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 16161057 is about 4020.0817155874. The cubic root of 16161057 is about 252.8268850676.

The spelling of 16161057 in words is "sixteen million, one hundred sixty-one thousand, fifty-seven".