161134771070 has 64 divisors (see below), whose sum is σ = 357061049856. Its totient is φ = 50984277120.

The previous prime is 161134771067. The next prime is 161134771087. The reversal of 161134771070 is 70177431161.

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, 4249937 + ... + 4287683.

It is an arithmetic number, because the mean of its divisors is an integer number (5579078904).

Almost surely, 2^161134771070 is an apocalyptic number.

161134771070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161134771070 is an abundant number, since it is smaller than the sum of its proper divisors (195926278786).

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

161134771070 is a wasteful number, since it uses less digits than its factorization.

161134771070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42465.

The product of its (nonzero) digits is 24696, while the sum is 38.

The spelling of 161134771070 in words is "one hundred sixty-one billion, one hundred thirty-four million, seven hundred seventy-one thousand, seventy".