161796822 has 16 divisors (see below), whose sum is σ = 353011392. Its totient is φ = 49029320.

The previous prime is 161796809. The next prime is 161796839. The reversal of 161796822 is 228697161.

161796822 is digitally balanced in base 2, 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 7 ways as a sum of consecutive naturals, for example, 1225668 + ... + 1225799.

It is an arithmetic number, because the mean of its divisors is an integer number (22063212).

Almost surely, 2^161796822 is an apocalyptic number.

161796822 is an abundant number, since it is smaller than the sum of its proper divisors (191214570).

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

161796822 is a wasteful number, since it uses less digits than its factorization.

161796822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2451483.

The product of its digits is 72576, while the sum is 42.

The square root of 161796822 is about 12719.9379715469. The cubic root of 161796822 is about 544.9081819340.

The spelling of 161796822 in words is "one hundred sixty-one million, seven hundred ninety-six thousand, eight hundred twenty-two".