2257596638320 has 40 divisors (see below), whose sum is σ = 5390774682624. Its totient is φ = 878632204032.

The previous prime is 2257596638293. The next prime is 2257596638327. The reversal of 2257596638320 is 238366957522.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257596638327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381347824 + ... + 381353743.

Almost surely, 2^{2257596638320} is an apocalyptic number.

2257596638320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2257596638320 is an abundant number, since it is smaller than the sum of its proper divisors (3133178044304).

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

2257596638320 is a wasteful number, since it uses less digits than its factorization.

2257596638320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762701617 (or 762701611 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 58.

The spelling of 2257596638320 in words is "two trillion, two hundred fifty-seven billion, five hundred ninety-six million, six hundred thirty-eight thousand, three hundred twenty".