21141183570166 has 16 divisors (see below), whose sum is σ = 36415435815360. Its totient is φ = 9103858953480.

The previous prime is 21141183570151. The next prime is 21141183570187. The reversal of 21141183570166 is 66107538114112.

It is a super-3 number, since 3×21141183570166³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

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, 25288496676 + ... + 25288497511.

It is an arithmetic number, because the mean of its divisors is an integer number (2275964738460).

Almost surely, 2^{21141183570166} is an apocalyptic number.

21141183570166 is a deficient number, since it is larger than the sum of its proper divisors (15274252245194).

21141183570166 is a wasteful number, since it uses less digits than its factorization.

21141183570166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50576994219.

The product of its (nonzero) digits is 241920, while the sum is 46.

The spelling of 21141183570166 in words is "twenty-one trillion, one hundred forty-one billion, one hundred eighty-three million, five hundred seventy thousand, one hundred sixty-six".