20456366068 has 12 divisors (see below), whose sum is σ = 35802501700. Its totient is φ = 10227079872.

The previous prime is 20456366053. The next prime is 20456366081. The reversal of 20456366068 is 86066365402.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12984146704 + 7472219364 = 113948^2 + 86442^2 .

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

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, 233343 + ... + 308806.

Almost surely, 2^20456366068 is an apocalyptic number.

It is an amenable number.

20456366068 is a deficient number, since it is larger than the sum of its proper divisors (15346135632).

20456366068 is a wasteful number, since it uses less digits than its factorization.

20456366068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551586 (or 551584 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 46.

The spelling of 20456366068 in words is "twenty billion, four hundred fifty-six million, three hundred sixty-six thousand, sixty-eight".