28166604576000 has 1728 divisors, whose sum is σ = 105678937448448. Its totient is φ = 6642155520000.

The previous prime is 28166604575971. The next prime is 28166604576023. The reversal of 28166604576000 is 67540666182.

It is a super-2 number, since 2×28166604576000² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 89989151844 + ... + 89989152156.

Almost surely, 2^{28166604576000} is an apocalyptic number.

28166604576000 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 28166604576000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52839468724224).

28166604576000 is an abundant number, since it is smaller than the sum of its proper divisors (77512332872448).

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

28166604576000 is a wasteful number, since it uses less digits than its factorization.

28166604576000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557 (or 522 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 28166604576000 in words is "twenty-eight trillion, one hundred sixty-six billion, six hundred four million, five hundred seventy-six thousand".