20666104302 has 32 divisors (see below), whose sum is σ = 43141992192. Its totient is φ = 6587247744.

The previous prime is 20666104297. The next prime is 20666104367. The reversal of 20666104302 is 20340166602.

It is a super-2 number, since 2×20666104302² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20666104302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 489933 + ... + 530439.

It is an arithmetic number, because the mean of its divisors is an integer number (1348187256).

Almost surely, 2^20666104302 is an apocalyptic number.

20666104302 is an abundant number, since it is smaller than the sum of its proper divisors (22475887890).

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

20666104302 is a wasteful number, since it uses less digits than its factorization.

20666104302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44232.

The product of its (nonzero) digits is 10368, while the sum is 30.

The spelling of 20666104302 in words is "twenty billion, six hundred sixty-six million, one hundred four thousand, three hundred two".