161950080 has 64 divisors (see below), whose sum is σ = 516222000. Its totient is φ = 43186176.

The previous prime is 161950069. The next prime is 161950081. The reversal of 161950080 is 80059161.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161950081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40255 + ... + 44094.

Almost surely, 2^161950080 is an apocalyptic number.

161950080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161950080 is an abundant number, since it is smaller than the sum of its proper divisors (354271920).

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

161950080 is an equidigital number, since it uses as much as digits as its factorization.

161950080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84371 (or 84359 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 161950080 is about 12725.9608674552. The cubic root of 161950080 is about 545.0801778626.

The spelling of 161950080 in words is "one hundred sixty-one million, nine hundred fifty thousand, eighty".