161926270960 has 40 divisors (see below), whose sum is σ = 376847505216. Its totient is φ = 64707037440.

The previous prime is 161926270931. The next prime is 161926271009. The reversal of 161926270960 is 69072629161.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×161926270960² (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 7 ways as a sum of consecutive naturals, for example, 909544 + ... + 1072903.

Almost surely, 2^161926270960 is an apocalyptic number.

161926270960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161926270960 is an abundant number, since it is smaller than the sum of its proper divisors (214921234256).

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

161926270960 is a wasteful number, since it uses less digits than its factorization.

161926270960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1983481 (or 1983475 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 49.

The spelling of 161926270960 in words is "one hundred sixty-one billion, nine hundred twenty-six million, two hundred seventy thousand, nine hundred sixty".