161156606101170 has 32 divisors (see below), whose sum is σ = 387518226762240. Its totient is φ = 42892609169280.

The previous prime is 161156606101039. The next prime is 161156606101171. The reversal of 161156606101170 is 71101606651161.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (161156606101171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5155346050 + ... + 5155377309.

It is an arithmetic number, because the mean of its divisors is an integer number (12109944586320).

Almost surely, 2^{161156606101170} is an apocalyptic number.

161156606101170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161156606101170 is an abundant number, since it is smaller than the sum of its proper divisors (226361620661070).

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

161156606101170 is a wasteful number, since it uses less digits than its factorization.

161156606101170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10310723890.

The product of its (nonzero) digits is 45360, while the sum is 42.

The spelling of 161156606101170 in words is "one hundred sixty-one trillion, one hundred fifty-six billion, six hundred six million, one hundred one thousand, one hundred seventy".