658161996 has 24 divisors (see below), whose sum is σ = 1536385200. Its totient is φ = 219291072.

The previous prime is 658161949. The next prime is 658162007. The reversal of 658161996 is 699161856.

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, 19830 + ... + 41346.

It is an arithmetic number, because the mean of its divisors is an integer number (64016050).

Almost surely, 2^658161996 is an apocalyptic number.

It is an amenable number.

658161996 is an abundant number, since it is smaller than the sum of its proper divisors (878223204).

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

658161996 is a wasteful number, since it uses less digits than its factorization.

658161996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24073 (or 24071 counting only the distinct ones).

The product of its digits is 699840, while the sum is 51.

The square root of 658161996 is about 25654.6681132304. The cubic root of 658161996 is about 869.8497983531.

The spelling of 658161996 in words is "six hundred fifty-eight million, one hundred sixty-one thousand, nine hundred ninety-six".