161102787184 has 20 divisors (see below), whose sum is σ = 325707809616. Its totient is φ = 77049158912.

The previous prime is 161102787169. The next prime is 161102787187. The reversal of 161102787184 is 481787201161.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161102787187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218889289 + ... + 218890024.

Almost surely, 2^161102787184 is an apocalyptic number.

It is an amenable number.

161102787184 is an abundant number, since it is smaller than the sum of its proper divisors (164605022432).

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

161102787184 is a wasteful number, since it uses less digits than its factorization.

161102787184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437779344 (or 437779338 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 46.

The spelling of 161102787184 in words is "one hundred sixty-one billion, one hundred two million, seven hundred eighty-seven thousand, one hundred eighty-four".