20466890352 has 80 divisors (see below), whose sum is σ = 59052187680. Its totient is φ = 6786920448.

The previous prime is 20466890351. The next prime is 20466890387. The reversal of 20466890352 is 25309866402.

20466890352 is a `hidden beast` number, since 204 + 6 + 6 + 8 + 90 + 352 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 20466890298 and 20466890307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20466890351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39363 + ... + 206114.

It is an arithmetic number, because the mean of its divisors is an integer number (738152346).

Almost surely, 2^20466890352 is an apocalyptic number.

It is an amenable number.

20466890352 is an abundant number, since it is smaller than the sum of its proper divisors (38585297328).

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

20466890352 is a wasteful number, since it uses less digits than its factorization.

20466890352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245687 (or 245675 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 20466890352 in words is "twenty billion, four hundred sixty-six million, eight hundred ninety thousand, three hundred fifty-two".