161902412588 has 24 divisors (see below), whose sum is σ = 324973811232. Its totient is φ = 69136251264.

The previous prime is 161902412587. The next prime is 161902412599. The reversal of 161902412588 is 885214209161.

161902412588 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (161902412587) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10429481 + ... + 10444992.

It is an arithmetic number, because the mean of its divisors is an integer number (13540575468).

Almost surely, 2^161902412588 is an apocalyptic number.

It is an amenable number.

161902412588 is an abundant number, since it is smaller than the sum of its proper divisors (163071398644).

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

161902412588 is a wasteful number, since it uses less digits than its factorization.

161902412588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20874761 (or 20874759 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 47.

The spelling of 161902412588 in words is "one hundred sixty-one billion, nine hundred two million, four hundred twelve thousand, five hundred eighty-eight".