2591659966128 has 40 divisors (see below), whose sum is σ = 7047496401600. Its totient is φ = 818418936384.

The previous prime is 2591659966099. The next prime is 2591659966243. The reversal of 2591659966128 is 8216699561952.

It is a super-2 number, since 2×2591659966128² (a number of 26 digits) contains 22 as substring.

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, 1420865298 + ... + 1420867121.

It is an arithmetic number, because the mean of its divisors is an integer number (176187410040).

Almost surely, 2^{2591659966128} is an apocalyptic number.

It is an amenable number.

2591659966128 is an abundant number, since it is smaller than the sum of its proper divisors (4455836435472).

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

2591659966128 is a wasteful number, since it uses less digits than its factorization.

2591659966128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2841732449 (or 2841732443 counting only the distinct ones).

The product of its digits is 125971200, while the sum is 69.

The spelling of 2591659966128 in words is "two trillion, five hundred ninety-one billion, six hundred fifty-nine million, nine hundred sixty-six thousand, one hundred twenty-eight".