161889080862096 has 135 divisors (see below), whose sum is σ = 527037787354923. Its totient is φ = 46253717737920.

The previous prime is 161889080862083. The next prime is 161889080862127. The reversal of 161889080862096 is 690268080988161.

The square root of 161889080862096 is 12723564.

It is a perfect power (a square), and thus also a powerful number.

161889080862096 is a `hidden beast` number, since 1 + 6 + 188 + 90 + 80 + 86 + 209 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1068703641 + ... + 1068855111.

Almost surely, 2^{161889080862096} is an apocalyptic number.

161889080862096 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

161889080862096 is the 12723564-th square number.

It is an amenable number.

161889080862096 is an abundant number, since it is smaller than the sum of its proper divisors (365148706492827).

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

161889080862096 is an frugal number, since it uses more digits than its factorization.

161889080862096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302970 (or 151483 counting only the distinct ones).

The product of its (nonzero) digits is 143327232, while the sum is 72.

The spelling of 161889080862096 in words is "one hundred sixty-one trillion, eight hundred eighty-nine billion, eighty million, eight hundred sixty-two thousand, ninety-six".