161847686261404 has 96 divisors (see below), whose sum is σ = 350301063974400. Its totient is φ = 64327005308160.

The previous prime is 161847686261399. The next prime is 161847686261411. The reversal of 161847686261404 is 404162686748161.

It is a happy number.

161847686261404 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 2×161847686261404² (a number of 29 digits) contains 22 as substring.

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, 99603514 + ... + 101215390.

It is an arithmetic number, because the mean of its divisors is an integer number (3648969416400).

Almost surely, 2^{161847686261404} is an apocalyptic number.

It is an amenable number.

161847686261404 is an abundant number, since it is smaller than the sum of its proper divisors (188453377712996).

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

161847686261404 is a wasteful number, since it uses less digits than its factorization.

161847686261404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621163 (or 1621161 counting only the distinct ones).

The product of its (nonzero) digits is 74317824, while the sum is 64.

The spelling of 161847686261404 in words is "one hundred sixty-one trillion, eight hundred forty-seven billion, six hundred eighty-six million, two hundred sixty-one thousand, four hundred four".