161047559388 has 96 divisors (see below), whose sum is σ = 385383930624. Its totient is φ = 52324766208.

The previous prime is 161047559357. The next prime is 161047559401. The reversal of 161047559388 is 883955740161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67751256 + ... + 67753632.

It is an arithmetic number, because the mean of its divisors is an integer number (4014415944).

Almost surely, 2^161047559388 is an apocalyptic number.

It is an amenable number.

161047559388 is an abundant number, since it is smaller than the sum of its proper divisors (224336371236).

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

161047559388 is a wasteful number, since it uses less digits than its factorization.

161047559388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3091 (or 3089 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 57.

The spelling of 161047559388 in words is "one hundred sixty-one billion, forty-seven million, five hundred fifty-nine thousand, three hundred eighty-eight".