161636415022 has 24 divisors (see below), whose sum is σ = 256465142136. Its totient is φ = 76391634384.

The previous prime is 161636415011. The next prime is 161636415053. The reversal of 161636415022 is 220514636161.

It is a super-2 number, since 2×161636415022² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67168 + ... + 572524.

It is an arithmetic number, because the mean of its divisors is an integer number (10686047589).

Almost surely, 2^161636415022 is an apocalyptic number.

161636415022 is a deficient number, since it is larger than the sum of its proper divisors (94828727114).

161636415022 is a wasteful number, since it uses less digits than its factorization.

161636415022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505840 (or 505821 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 161636415022 in words is "one hundred sixty-one billion, six hundred thirty-six million, four hundred fifteen thousand, twenty-two".