20867227600 has 30 divisors (see below), whose sum is σ = 50133515270. Its totient is φ = 8346890880.

The previous prime is 20867227597. The next prime is 20867227613. The reversal of 20867227600 is 672276802.

It can be written as a sum of positive squares in 3 ways, for example, as 5668282944 + 15198944656 = 75288^2 + 123284^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26083635 + ... + 26084434.

Almost surely, 2^20867227600 is an apocalyptic number.

20867227600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20867227600 is an abundant number, since it is smaller than the sum of its proper divisors (29266287670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20867227600 is a wasteful number, since it uses less digits than its factorization.

20867227600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52168087 (or 52168076 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 20867227600 in words is "twenty billion, eight hundred sixty-seven million, two hundred twenty-seven thousand, six hundred".