161208850 has 24 divisors (see below), whose sum is σ = 327108528. Its totient is φ = 58621200.

The previous prime is 161208833. The next prime is 161208877. The reversal of 161208850 is 58802161.

161208850 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146004 + ... + 147103.

It is an arithmetic number, because the mean of its divisors is an integer number (13629522).

Almost surely, 2^161208850 is an apocalyptic number.

161208850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161208850 is an abundant number, since it is smaller than the sum of its proper divisors (165899678).

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

161208850 is a wasteful number, since it uses less digits than its factorization.

161208850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293130 (or 293125 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 161208850 is about 12696.8047161481. The cubic root of 161208850 is about 544.2473126689.

The spelling of 161208850 in words is "one hundred sixty-one million, two hundred eight thousand, eight hundred fifty".