622161156 has 24 divisors (see below), whose sum is σ = 1528115680. Its totient is φ = 196471872.

The previous prime is 622161149. The next prime is 622161167. The reversal of 622161156 is 651161226.

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, 1364161 + ... + 1364616.

Almost surely, 2^622161156 is an apocalyptic number.

It is an amenable number.

622161156 is an abundant number, since it is smaller than the sum of its proper divisors (905954524).

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

622161156 is a wasteful number, since it uses less digits than its factorization.

622161156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2728803 (or 2728801 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 622161156 is about 24943.1585008796. The cubic root of 622161156 is about 853.6915137928.

The spelling of 622161156 in words is "six hundred twenty-two million, one hundred sixty-one thousand, one hundred fifty-six".