20624933760 has 128 divisors (see below), whose sum is σ = 65787845760. Its totient is φ = 5496145920.

The previous prime is 20624933737. The next prime is 20624933761. The reversal of 20624933760 is 6733942602.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20624933761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3704739 + ... + 3710301.

It is an arithmetic number, because the mean of its divisors is an integer number (513967545).

Almost surely, 2^20624933760 is an apocalyptic number.

20624933760 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 20624933760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32893922880).

20624933760 is an abundant number, since it is smaller than the sum of its proper divisors (45162912000).

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

20624933760 is a wasteful number, since it uses less digits than its factorization.

20624933760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7516 (or 7504 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 42.

The spelling of 20624933760 in words is "twenty billion, six hundred twenty-four million, nine hundred thirty-three thousand, seven hundred sixty".