20027717166 has 8 divisors (see below), whose sum is σ = 40055434344. Its totient is φ = 6675905720.

The previous prime is 20027717137. The next prime is 20027717197. The reversal of 20027717166 is 66171772002.

20027717166 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

20027717166 is an admirable number.

It is a super-2 number, since 2×20027717166² (a number of 21 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 3 ways as a sum of consecutive naturals, for example, 1668976425 + ... + 1668976436.

It is an arithmetic number, because the mean of its divisors is an integer number (5006929293).

Almost surely, 2^20027717166 is an apocalyptic number.

20027717166 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20027717166 is a wasteful number, since it uses less digits than its factorization.

20027717166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3337952866.

The product of its (nonzero) digits is 49392, while the sum is 39.

The spelling of 20027717166 in words is "twenty billion, twenty-seven million, seven hundred seventeen thousand, one hundred sixty-six".