161120570 has 128 divisors (see below), whose sum is σ = 353928960. Its totient is φ = 52254720.

The previous prime is 161120537. The next prime is 161120593. The reversal of 161120570 is 75021161.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3746969 + ... + 3747011.

It is an arithmetic number, because the mean of its divisors is an integer number (2765070).

Almost surely, 2^161120570 is an apocalyptic number.

161120570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161120570 is an abundant number, since it is smaller than the sum of its proper divisors (192808390).

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

161120570 is a wasteful number, since it uses less digits than its factorization.

161120570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 161120570 is about 12693.3277748587. The cubic root of 161120570 is about 544.1479489643.

The spelling of 161120570 in words is "one hundred sixty-one million, one hundred twenty thousand, five hundred seventy".