161537662772010 has 96 divisors (see below), whose sum is σ = 480222875763072. Its totient is φ = 36905567483520.

The previous prime is 161537662771939. The next prime is 161537662772041. The reversal of 161537662772010 is 10277266735161.

161537662772010 is a `hidden beast` number, since 1 + 6 + 1 + 5 + 3 + 7 + 6 + 627 + 7 + 2 + 0 + 1 + 0 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 58819129 + ... + 61504188.

It is an arithmetic number, because the mean of its divisors is an integer number (5002321622532).

Almost surely, 2^{161537662772010} is an apocalyptic number.

161537662772010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161537662772010 is an abundant number, since it is smaller than the sum of its proper divisors (318685212991062).

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

161537662772010 is a wasteful number, since it uses less digits than its factorization.

161537662772010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120325468 (or 120325465 counting only the distinct ones).

The product of its (nonzero) digits is 4445280, while the sum is 54.

The spelling of 161537662772010 in words is "one hundred sixty-one trillion, five hundred thirty-seven billion, six hundred sixty-two million, seven hundred seventy-two thousand, ten".