2591153664 has 80 divisors (see below), whose sum is σ = 7530589440. Its totient is φ = 785192960.

The previous prime is 2591153659. The next prime is 2591153689. The reversal of 2591153664 is 4663511952.

It is a congruent number.

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, 59784 + ... + 93575.

It is an arithmetic number, because the mean of its divisors is an integer number (94132368).

Almost surely, 2^2591153664 is an apocalyptic number.

2591153664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2591153664 is an abundant number, since it is smaller than the sum of its proper divisors (4939435776).

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

2591153664 is a wasteful number, since it uses less digits than its factorization.

2591153664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153391 (or 153375 counting only the distinct ones).

The product of its digits is 194400, while the sum is 42.

The square root of 2591153664 is about 50903.3757623205. The cubic root of 2591153664 is about 1373.5075666292.

The spelling of 2591153664 in words is "two billion, five hundred ninety-one million, one hundred fifty-three thousand, six hundred sixty-four".