2257117712520 has 128 divisors (see below), whose sum is σ = 7775716608000. Its totient is φ = 518381095680.

The previous prime is 2257117712519. The next prime is 2257117712543. The reversal of 2257117712520 is 252177117522.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44973280 + ... + 45023439.

It is an arithmetic number, because the mean of its divisors is an integer number (60747786000).

Almost surely, 2^{2257117712520} is an apocalyptic number.

2257117712520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2257117712520 is an abundant number, since it is smaller than the sum of its proper divisors (5518598895480).

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

2257117712520 is a wasteful number, since it uses less digits than its factorization.

2257117712520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89996763 (or 89996759 counting only the distinct ones).

The product of its (nonzero) digits is 137200, while the sum is 42.

The spelling of 2257117712520 in words is "two trillion, two hundred fifty-seven billion, one hundred seventeen million, seven hundred twelve thousand, five hundred twenty".