20452503412 has 72 divisors (see below), whose sum is σ = 43661147040. Its totient is φ = 8289123840.

The previous prime is 20452503397. The next prime is 20452503433. The reversal of 20452503412 is 21430525402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 199278 + ... + 283930.

It is an arithmetic number, because the mean of its divisors is an integer number (606404820).

Almost surely, 2^20452503412 is an apocalyptic number.

20452503412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20452503412 is an abundant number, since it is smaller than the sum of its proper divisors (23208643628).

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

20452503412 is a wasteful number, since it uses less digits than its factorization.

20452503412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84721 (or 84702 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The spelling of 20452503412 in words is "twenty billion, four hundred fifty-two million, five hundred three thousand, four hundred twelve".