161715070 has 64 divisors (see below), whose sum is σ = 339655680. Its totient is φ = 54841600.

The previous prime is 161715053. The next prime is 161715149. The reversal of 161715070 is 70517161.

161715070 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102951 + ... + 104509.

It is an arithmetic number, because the mean of its divisors is an integer number (5307120).

Almost surely, 2^161715070 is an apocalyptic number.

161715070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161715070 is an abundant number, since it is smaller than the sum of its proper divisors (177940610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161715070 is a wasteful number, since it uses less digits than its factorization.

161715070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641.

The product of its (nonzero) digits is 1470, while the sum is 28.

The square root of 161715070 is about 12716.7240278304. The cubic root of 161715070 is about 544.8163901873.

The spelling of 161715070 in words is "one hundred sixty-one million, seven hundred fifteen thousand, seventy".