20166213764184 has 32 divisors (see below), whose sum is σ = 50422736021040. Its totient is φ = 6721111040000.

The previous prime is 20166213764171. The next prime is 20166213764201. The reversal of 20166213764184 is 48146731266102.

It is a super-2 number, since 2×20166213764184² (a number of 27 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 7 ways as a sum of consecutive naturals, for example, 59841897 + ... + 60177944.

Almost surely, 2^{20166213764184} is an apocalyptic number.

20166213764184 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20166213764184 is an abundant number, since it is smaller than the sum of its proper divisors (30256522256856).

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

20166213764184 is a wasteful number, since it uses less digits than its factorization.

20166213764184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120026851 (or 120026847 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 20166213764184 in words is "twenty trillion, one hundred sixty-six billion, two hundred thirteen million, seven hundred sixty-four thousand, one hundred eighty-four".