161199546608000 has 64 divisors (see below), whose sum is σ = 400782372793920. Its totient is φ = 64479818636800.

The previous prime is 161199546607997. The next prime is 161199546608059. The reversal of 161199546608000 is 806645991161.

It is a tau number, because it is divible by the number of its divisors (64).

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, 5037469832 + ... + 5037501831.

It is an arithmetic number, because the mean of its divisors is an integer number (6262224574905).

Almost surely, 2^{161199546608000} is an apocalyptic number.

161199546608000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161199546608000 is an abundant number, since it is smaller than the sum of its proper divisors (239582826185920).

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

161199546608000 is an equidigital number, since it uses as much as digits as its factorization.

161199546608000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10074971692 (or 10074971670 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 56.

The spelling of 161199546608000 in words is "one hundred sixty-one trillion, one hundred ninety-nine billion, five hundred forty-six million, six hundred eight thousand".