18728601232160 has 192 divisors, whose sum is σ = 46423738303488. Its totient is φ = 7131622662144.

The previous prime is 18728601232147. The next prime is 18728601232183. The reversal of 18728601232160 is 6123210682781.

It is a super-2 number, since 2×18728601232160² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1070380532 + ... + 1070398028.

It is an arithmetic number, because the mean of its divisors is an integer number (241790303664).

Almost surely, 2^{18728601232160} is an apocalyptic number.

18728601232160 is a gapful number since it is divisible by the number (10) 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 18728601232160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23211869151744).

18728601232160 is an abundant number, since it is smaller than the sum of its proper divisors (27695137071328).

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

18728601232160 is a wasteful number, since it uses less digits than its factorization.

18728601232160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21443 (or 21435 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 47.

The spelling of 18728601232160 in words is "eighteen trillion, seven hundred twenty-eight billion, six hundred one million, two hundred thirty-two thousand, one hundred sixty".