20660166106602 has 48 divisors (see below), whose sum is σ = 46327942900512. Its totient is φ = 6091449439680.

The previous prime is 20660166106597. The next prime is 20660166106649.

It is a happy number.

20660166106602 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114238653 + ... + 114419360.

It is an arithmetic number, because the mean of its divisors is an integer number (965165477094).

Almost surely, 2^{20660166106602} is an apocalyptic number.

20660166106602 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20660166106602 is an abundant number, since it is smaller than the sum of its proper divisors (25667776793910).

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

20660166106602 is a wasteful number, since it uses less digits than its factorization.

20660166106602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228658103 (or 228658066 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The spelling of 20660166106602 in words is "twenty trillion, six hundred sixty billion, one hundred sixty-six million, one hundred six thousand, six hundred two".