161150672212520 has 16 divisors (see below), whose sum is σ = 362589012478260. Its totient is φ = 64460268884992.

The previous prime is 161150672212483. The next prime is 161150672212547. The reversal of 161150672212520 is 25212276051161.

It can be written as a sum of positive squares in 2 ways, for example, as 136169808549124 + 24980863663396 = 11669182^2 + 4998086^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2014383402617 + ... + 2014383402696.

Almost surely, 2^{161150672212520} is an apocalyptic number.

161150672212520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161150672212520 is an abundant number, since it is smaller than the sum of its proper divisors (201438340265740).

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

161150672212520 is a wasteful number, since it uses less digits than its factorization.

161150672212520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4028766805324 (or 4028766805320 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 41.

The spelling of 161150672212520 in words is "one hundred sixty-one trillion, one hundred fifty billion, six hundred seventy-two million, two hundred twelve thousand, five hundred twenty".