646118096 has 30 divisors (see below), whose sum is σ = 1355563350. Its totient is φ = 298207104.

The previous prime is 646118059. The next prime is 646118111. The reversal of 646118096 is 690811646.

It can be written as a sum of positive squares in 3 ways, for example, as 49000000 + 597118096 = 7000^2 + 24436^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 116771 + ... + 122178.

It is an arithmetic number, because the mean of its divisors is an integer number (45185445).

Almost surely, 2^646118096 is an apocalyptic number.

It is an amenable number.

646118096 is an abundant number, since it is smaller than the sum of its proper divisors (709445254).

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

646118096 is a wasteful number, since it uses less digits than its factorization.

646118096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238983 (or 238964 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 646118096 is about 25418.8531605972. The cubic root of 646118096 is about 864.5112215175.

The spelling of 646118096 in words is "six hundred forty-six million, one hundred eighteen thousand, ninety-six".