161198466480 has 120 divisors (see below), whose sum is σ = 541455389280. Its totient is φ = 42978539520.

The previous prime is 161198466467. The next prime is 161198466497. The reversal of 161198466480 is 84664891161.

161198466480 is a `hidden beast` number, since 1 + 6 + 11 + 98 + 4 + 66 + 480 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4792120 + ... + 4825640.

It is an arithmetic number, because the mean of its divisors is an integer number (4512128244).

Almost surely, 2^161198466480 is an apocalyptic number.

161198466480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161198466480 is an abundant number, since it is smaller than the sum of its proper divisors (380256922800).

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

161198466480 is a wasteful number, since it uses less digits than its factorization.

161198466480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40219 (or 40210 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The spelling of 161198466480 in words is "one hundred sixty-one billion, one hundred ninety-eight million, four hundred sixty-six thousand, four hundred eighty".