161830614880 has 48 divisors (see below), whose sum is σ = 417081634704. Its totient is φ = 58847495680.

The previous prime is 161830614859. The next prime is 161830614901. The reversal of 161830614880 is 88416038161.

It is an interprime number because it is at equal distance from previous prime (161830614859) and next prime (161830614901).

It is a self number, because there is not a number n which added to its sum of digits gives 161830614880.

It is a congruent number.

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, 45972847 + ... + 45976366.

It is an arithmetic number, because the mean of its divisors is an integer number (8689200723).

Almost surely, 2^161830614880 is an apocalyptic number.

161830614880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161830614880 is an abundant number, since it is smaller than the sum of its proper divisors (255251019824).

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

161830614880 is a wasteful number, since it uses less digits than its factorization.

161830614880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91949239 (or 91949231 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 46.

The spelling of 161830614880 in words is "one hundred sixty-one billion, eight hundred thirty million, six hundred fourteen thousand, eight hundred eighty".