161376870 has 32 divisors (see below), whose sum is σ = 393090048. Its totient is φ = 42391008.

The previous prime is 161376857. The next prime is 161376881. The reversal of 161376870 is 78673161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38134 + ... + 42153.

It is an arithmetic number, because the mean of its divisors is an integer number (12284064).

Almost surely, 2^161376870 is an apocalyptic number.

161376870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161376870 is an abundant number, since it is smaller than the sum of its proper divisors (231713178).

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

161376870 is a wasteful number, since it uses less digits than its factorization.

161376870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80364.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 161376870 is about 12703.4196183547. The cubic root of 161376870 is about 544.4363276899.

The spelling of 161376870 in words is "one hundred sixty-one million, three hundred seventy-six thousand, eight hundred seventy".