18828166560 has 192 divisors, whose sum is σ = 68316659712. Its totient is φ = 4269597696.

The previous prime is 18828166543. The next prime is 18828166561. The reversal of 18828166560 is 6566182881.

It is a happy number.

It is a super-2 number, since 2×18828166560² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18828166561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 404659 + ... + 448781.

It is an arithmetic number, because the mean of its divisors is an integer number (355815936).

Almost surely, 2^18828166560 is an apocalyptic number.

18828166560 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 18828166560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34158329856).

18828166560 is an abundant number, since it is smaller than the sum of its proper divisors (49488493152).

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

18828166560 is a wasteful number, since it uses less digits than its factorization.

18828166560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44275 (or 44267 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 51.

The spelling of 18828166560 in words is "eighteen billion, eight hundred twenty-eight million, one hundred sixty-six thousand, five hundred sixty".