20858733706 has 16 divisors (see below), whose sum is σ = 31401748224. Its totient is φ = 10391510304.

The previous prime is 20858733697. The next prime is 20858733737. The reversal of 20858733706 is 60733785802.

It is a self number, because there is not a number n which added to its sum of digits gives 20858733706.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2349031 + ... + 2357893.

It is an arithmetic number, because the mean of its divisors is an integer number (1962609264).

Almost surely, 2^20858733706 is an apocalyptic number.

20858733706 is a deficient number, since it is larger than the sum of its proper divisors (10543014518).

20858733706 is a wasteful number, since it uses less digits than its factorization.

20858733706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13005.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 20858733706 in words is "twenty billion, eight hundred fifty-eight million, seven hundred thirty-three thousand, seven hundred six".