20499008806 has 8 divisors (see below), whose sum is σ = 30767074920. Its totient is φ = 10243317168.

The previous prime is 20499008779. The next prime is 20499008861. The reversal of 20499008806 is 60880099402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3089476 + ... + 3096103.

It is an arithmetic number, because the mean of its divisors is an integer number (3845884365).

Almost surely, 2^20499008806 is an apocalyptic number.

20499008806 is a deficient number, since it is larger than the sum of its proper divisors (10268066114).

20499008806 is a wasteful number, since it uses less digits than its factorization.

20499008806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6187238.

The product of its (nonzero) digits is 248832, while the sum is 46.

The spelling of 20499008806 in words is "twenty billion, four hundred ninety-nine million, eight thousand, eight hundred six".