20699535986 has 8 divisors (see below), whose sum is σ = 31050162864. Its totient is φ = 10349481700.

The previous prime is 20699535953. The next prime is 20699536049. The reversal of 20699535986 is 68953599602.

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

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, 37040 + ... + 206811.

It is an arithmetic number, because the mean of its divisors is an integer number (3881270358).

Almost surely, 2^20699535986 is an apocalyptic number.

20699535986 is a deficient number, since it is larger than the sum of its proper divisors (10350626878).

20699535986 is a wasteful number, since it uses less digits than its factorization.

20699535986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286296.

The product of its (nonzero) digits is 31492800, while the sum is 62.

The spelling of 20699535986 in words is "twenty billion, six hundred ninety-nine million, five hundred thirty-five thousand, nine hundred eighty-six".