18630125455552 has 56 divisors (see below), whose sum is σ = 39813934327776. Its totient is φ = 8598303909888.

The previous prime is 18630125455429. The next prime is 18630125455561. The reversal of 18630125455552 is 25555452103681.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a self number, because there is not a number n which added to its sum of digits gives 18630125455552.

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, 35702508 + ... + 36220564.

It is an arithmetic number, because the mean of its divisors is an integer number (710963112996).

Almost surely, 2^{18630125455552} is an apocalyptic number.

It is an amenable number.

18630125455552 is an abundant number, since it is smaller than the sum of its proper divisors (21183808872224).

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

18630125455552 is a wasteful number, since it uses less digits than its factorization.

18630125455552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561305 (or 561295 counting only the distinct ones).

The product of its (nonzero) digits is 7200000, while the sum is 52.

The spelling of 18630125455552 in words is "eighteen trillion, six hundred thirty billion, one hundred twenty-five million, four hundred fifty-five thousand, five hundred fifty-two".