7916665944 has 64 divisors (see below), whose sum is σ = 22860973440. Its totient is φ = 2257871360.

The previous prime is 7916665937. The next prime is 7916665957. The reversal of 7916665944 is 4495666197.

It is a super-2 number, since 2×7916665944² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 877494 + ... + 886469.

It is an arithmetic number, because the mean of its divisors is an integer number (357202710).

Almost surely, 2^7916665944 is an apocalyptic number.

It is an amenable number.

7916665944 is an abundant number, since it is smaller than the sum of its proper divisors (14944307496).

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

7916665944 is a wasteful number, since it uses less digits than its factorization.

7916665944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1764000 (or 1763996 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 57.

The square root of 7916665944 is about 88975.6480392248. The cubic root of 7916665944 is about 1993.0312417398.

The spelling of 7916665944 in words is "seven billion, nine hundred sixteen million, six hundred sixty-five thousand, nine hundred forty-four".