2506154863680 has 504 divisors, whose sum is σ = 9635383929600. Its totient is φ = 596996075520.

The previous prime is 2506154863679. The next prime is 2506154863733. The reversal of 2506154863680 is 863684516052.

2506154863680 is a `hidden beast` number, since 2 + 5 + 0 + 61 + 548 + 6 + 36 + 8 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 15005271 + ... + 15171369.

Almost surely, 2^{2506154863680} is an apocalyptic number.

2506154863680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2506154863680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4817691964800).

2506154863680 is an abundant number, since it is smaller than the sum of its proper divisors (7129229065920).

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

2506154863680 is a wasteful number, since it uses less digits than its factorization.

2506154863680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166179 (or 166153 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 54.

The spelling of 2506154863680 in words is "two trillion, five hundred six billion, one hundred fifty-four million, eight hundred sixty-three thousand, six hundred eighty".