6440099160 has 96 divisors (see below), whose sum is σ = 21236407920. Its totient is φ = 1561232640.

The previous prime is 6440099143. The next prime is 6440099177. The reversal of 6440099160 is 619900446.

It is an interprime number because it is at equal distance from previous prime (6440099143) and next prime (6440099177).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 207247 + ... + 236286.

Almost surely, 2^6440099160 is an apocalyptic number.

6440099160 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6440099160 is an abundant number, since it is smaller than the sum of its proper divisors (14796308760).

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

6440099160 is a wasteful number, since it uses less digits than its factorization.

6440099160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443569 (or 443554 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 6440099160 is about 80250.2284108899. The cubic root of 6440099160 is about 1860.5050426438.

The spelling of 6440099160 in words is "six billion, four hundred forty million, ninety-nine thousand, one hundred sixty".