161535616312026 has 64 divisors (see below), whose sum is σ = 385211033358336. Its totient is φ = 44584610323200.

The previous prime is 161535616312001. The next prime is 161535616312097. The reversal of 161535616312026 is 620213616535161.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2322080340 + ... + 2322149903.

It is an arithmetic number, because the mean of its divisors is an integer number (6018922396224).

Almost surely, 2^{161535616312026} is an apocalyptic number.

161535616312026 is an abundant number, since it is smaller than the sum of its proper divisors (223675417046310).

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

161535616312026 is a wasteful number, since it uses less digits than its factorization.

161535616312026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4644230307.

The product of its (nonzero) digits is 1166400, while the sum is 48.

The spelling of 161535616312026 in words is "one hundred sixty-one trillion, five hundred thirty-five billion, six hundred sixteen million, three hundred twelve thousand, twenty-six".