20886356306 has 8 divisors (see below), whose sum is σ = 31357585740. Its totient is φ = 10433827728.

The previous prime is 20886356269. The next prime is 20886356311. The reversal of 20886356306 is 60365368802.

It can be written as a sum of positive squares in 2 ways, for example, as 20881695025 + 4661281 = 144505^2 + 2159^2 .

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, 4672421 + ... + 4676888.

Almost surely, 2^20886356306 is an apocalyptic number.

20886356306 is a deficient number, since it is larger than the sum of its proper divisors (10471229434).

20886356306 is a wasteful number, since it uses less digits than its factorization.

20886356306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9350428.

The product of its (nonzero) digits is 1244160, while the sum is 47.

The spelling of 20886356306 in words is "twenty billion, eight hundred eighty-six million, three hundred fifty-six thousand, three hundred six".