20411504000 has 64 divisors (see below), whose sum is σ = 50748141600. Its totient is φ = 8164595200.

The previous prime is 20411503979. The next prime is 20411504017. The reversal of 20411504000 is 40511402.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 20411504000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 621860 + ... + 653859.

Almost surely, 2^20411504000 is an apocalyptic number.

20411504000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20411504000 is an abundant number, since it is smaller than the sum of its proper divisors (30336637600).

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

20411504000 is an equidigital number, since it uses as much as digits as its factorization.

20411504000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275748 (or 1275726 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The spelling of 20411504000 in words is "twenty billion, four hundred eleven million, five hundred four thousand".