161900796 has 48 divisors (see below), whose sum is σ = 389660544. Its totient is φ = 52293696.

The previous prime is 161900777. The next prime is 161900807. The reversal of 161900796 is 697009161.

161900796 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51255 + ... + 54321.

It is an arithmetic number, because the mean of its divisors is an integer number (8117928).

Almost surely, 2^161900796 is an apocalyptic number.

It is an amenable number.

161900796 is an abundant number, since it is smaller than the sum of its proper divisors (227759748).

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

161900796 is a wasteful number, since it uses less digits than its factorization.

161900796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3210 (or 3208 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 161900796 is about 12724.0243633844. The cubic root of 161900796 is about 545.0248800470.

The spelling of 161900796 in words is "one hundred sixty-one million, nine hundred thousand, seven hundred ninety-six".