20670652208 has 40 divisors (see below), whose sum is σ = 40218425856. Its totient is φ = 10291803200.

The previous prime is 20670652169. The next prime is 20670652213. The reversal of 20670652208 is 80225607602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3948953 + ... + 3954183.

Almost surely, 2^20670652208 is an apocalyptic number.

It is an amenable number.

20670652208 is a deficient number, since it is larger than the sum of its proper divisors (19547773648).

20670652208 is a wasteful number, since it uses less digits than its factorization.

20670652208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6233 (or 6227 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The spelling of 20670652208 in words is "twenty billion, six hundred seventy million, six hundred fifty-two thousand, two hundred eight".