161353135155 has 16 divisors (see below), whose sum is σ = 258761250720. Its totient is φ = 85856260608.

The previous prime is 161353135067. The next prime is 161353135193. The reversal of 161353135155 is 551531353161.

It is a happy number.

It is not a de Polignac number, because 161353135155 - 2¹⁵ = 161353102387 is a prime.

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, 12414840 + ... + 12427829.

It is an arithmetic number, because the mean of its divisors is an integer number (16172578170).

Almost surely, 2^161353135155 is an apocalyptic number.

161353135155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

161353135155 is a deficient number, since it is larger than the sum of its proper divisors (97408115565).

161353135155 is a wasteful number, since it uses less digits than its factorization.

161353135155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24843110.

The product of its digits is 101250, while the sum is 39.

The spelling of 161353135155 in words is "one hundred sixty-one billion, three hundred fifty-three million, one hundred thirty-five thousand, one hundred fifty-five".