20150814100 has 36 divisors (see below), whose sum is σ = 44016884128. Its totient is φ = 8006940000.

The previous prime is 20150814083. The next prime is 20150814113. The reversal of 20150814100 is 141805102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 652146 + ... + 682345.

Almost surely, 2^20150814100 is an apocalyptic number.

20150814100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20150814100 is an abundant number, since it is smaller than the sum of its proper divisors (23866070028).

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

20150814100 is a wasteful number, since it uses less digits than its factorization.

20150814100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334656 (or 1334649 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 22.

The spelling of 20150814100 in words is "twenty billion, one hundred fifty million, eight hundred fourteen thousand, one hundred".