161629675 has 24 divisors (see below), whose sum is σ = 212040000. Its totient is φ = 121877280.

The previous prime is 161629651. The next prime is 161629679. The reversal of 161629675 is 576926161.

161629675 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 161629675 - 2⁷ = 161629547 is a prime.

It is a super-2 number, since 2×161629675² = 52248303681211250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161629679) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107076 + ... + 108574.

It is an arithmetic number, because the mean of its divisors is an integer number (8835000).

Almost surely, 2^161629675 is an apocalyptic number.

161629675 is a deficient number, since it is larger than the sum of its proper divisors (50410325).

161629675 is a wasteful number, since it uses less digits than its factorization.

161629675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1755 (or 1750 counting only the distinct ones).

The product of its digits is 136080, while the sum is 43.

The square root of 161629675 is about 12713.3659980353. The cubic root of 161629675 is about 544.7204750132.

The spelling of 161629675 in words is "one hundred sixty-one million, six hundred twenty-nine thousand, six hundred seventy-five".