161199004960 has 48 divisors (see below), whose sum is σ = 435237316416. Its totient is φ = 55268229888.

The previous prime is 161199004951. The next prime is 161199004969. The reversal of 161199004960 is 69400991161.

It is an interprime number because it is at equal distance from previous prime (161199004951) and next prime (161199004969).

It is a self number, because there is not a number n which added to its sum of digits gives 161199004960.

It is not an unprimeable number, because it can be changed into a prime (161199004969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71962722 + ... + 71964961.

It is an arithmetic number, because the mean of its divisors is an integer number (9067444092).

Almost surely, 2^161199004960 is an apocalyptic number.

161199004960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161199004960 is an abundant number, since it is smaller than the sum of its proper divisors (274038311456).

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

161199004960 is a wasteful number, since it uses less digits than its factorization.

161199004960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143927705 (or 143927697 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 46.

The spelling of 161199004960 in words is "one hundred sixty-one billion, one hundred ninety-nine million, four thousand, nine hundred sixty".