20103957504 has 66 divisors (see below), whose sum is σ = 58049767620. Its totient is φ = 6701316096.

The previous prime is 20103957499. The next prime is 20103957521. The reversal of 20103957504 is 40575930102.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1081494 + ... + 1099925.

Almost surely, 2^20103957504 is an apocalyptic number.

20103957504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20103957504 is an abundant number, since it is smaller than the sum of its proper divisors (37945810116).

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

20103957504 is a wasteful number, since it uses less digits than its factorization.

20103957504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2181445 (or 2181424 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The spelling of 20103957504 in words is "twenty billion, one hundred three million, nine hundred fifty-seven thousand, five hundred four".