161605611054984 has 32 divisors (see below), whose sum is σ = 404440652855520. Its totient is φ = 53811653655936.

The previous prime is 161605611054929. The next prime is 161605611055033. The reversal of 161605611054984 is 489450116506161.

161605611054984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161605611054984² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3555186949 + ... + 3555232404.

It is an arithmetic number, because the mean of its divisors is an integer number (12638770401735).

Almost surely, 2^{161605611054984} is an apocalyptic number.

It is an amenable number.

161605611054984 is an abundant number, since it is smaller than the sum of its proper divisors (242835041800536).

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

161605611054984 is a wasteful number, since it uses less digits than its factorization.

161605611054984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7110420309 (or 7110420305 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 57.

The spelling of 161605611054984 in words is "one hundred sixty-one trillion, six hundred five billion, six hundred eleven million, fifty-four thousand, nine hundred eighty-four".