20466890307 has 18 divisors (see below), whose sum is σ = 31201146132. Its totient is φ = 12926454984.

The previous prime is 20466890267. The next prime is 20466890309. The reversal of 20466890307 is 70309866402.

20466890307 is a `hidden beast` number, since 204 + 66 + 89 + 0 + 307 = 666.

It is not a de Polignac number, because 20466890307 - 2¹⁴ = 20466873923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20466890309) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3146473 + ... + 3152970.

Almost surely, 2^20466890307 is an apocalyptic number.

20466890307 is a deficient number, since it is larger than the sum of its proper divisors (10734255825).

20466890307 is a wasteful number, since it uses less digits than its factorization.

20466890307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6299487 (or 6299465 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 20466890307 in words is "twenty billion, four hundred sixty-six million, eight hundred ninety thousand, three hundred seven".