20324635020 has 240 divisors, whose sum is σ = 66115193760. Its totient is φ = 5222486016.

The previous prime is 20324634919. The next prime is 20324635081. The reversal of 20324635020 is 2053642302.

20324635020 is a `hidden beast` number, since 2 + 0 + 3 + 2 + 4 + 635 + 0 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 6411996 + ... + 6415164.

It is an arithmetic number, because the mean of its divisors is an integer number (275479974).

Almost surely, 2^20324635020 is an apocalyptic number.

20324635020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20324635020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33057596880).

20324635020 is an abundant number, since it is smaller than the sum of its proper divisors (45790558740).

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

20324635020 is a wasteful number, since it uses less digits than its factorization.

20324635020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3334 (or 3323 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The spelling of 20324635020 in words is "twenty billion, three hundred twenty-four million, six hundred thirty-five thousand, twenty".