161101650288 has 80 divisors (see below), whose sum is σ = 446867041536. Its totient is φ = 49829821440.

The previous prime is 161101650257. The next prime is 161101650343. The reversal of 161101650288 is 882056101161.

It is a congruent number.

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, 1332406 + ... + 1448277.

Almost surely, 2^161101650288 is an apocalyptic number.

It is an amenable number.

161101650288 is an abundant number, since it is smaller than the sum of its proper divisors (285765391248).

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

161101650288 is a wasteful number, since it uses less digits than its factorization.

161101650288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2780782 (or 2780776 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 39.

The spelling of 161101650288 in words is "one hundred sixty-one billion, one hundred one million, six hundred fifty thousand, two hundred eighty-eight".