161500600151604 has 72 divisors (see below), whose sum is σ = 481607524489728. Its totient is φ = 44654543818560.

The previous prime is 161500600151533. The next prime is 161500600151707. The reversal of 161500600151604 is 406151006005161.

161500600151604 is a `hidden beast` number, since 16 + 15 + 0 + 0 + 600 + 15 + 16 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 10336692147 + ... + 10336707770.

Almost surely, 2^{161500600151604} is an apocalyptic number.

161500600151604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

161500600151604 is an abundant number, since it is smaller than the sum of its proper divisors (320106924338124).

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

161500600151604 is a wasteful number, since it uses less digits than its factorization.

161500600151604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20673399965 (or 20673399960 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

Adding to 161500600151604 its reverse (406151006005161), we get a palindrome (567651606156765).

The spelling of 161500600151604 in words is "one hundred sixty-one trillion, five hundred billion, six hundred million, one hundred fifty-one thousand, six hundred four".