20124802620 has 96 divisors (see below), whose sum is σ = 67426712640. Its totient is φ = 4953795840.

The previous prime is 20124802601. The next prime is 20124802627. The reversal of 20124802620 is 2620842102.

It is a happy number.

20124802620 is a `hidden beast` number, since 20 + 12 + 4 + 8 + 0 + 2 + 620 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20124802627) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1426371 + ... + 1440410.

It is an arithmetic number, because the mean of its divisors is an integer number (702361590).

Almost surely, 2^20124802620 is an apocalyptic number.

20124802620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20124802620 is an abundant number, since it is smaller than the sum of its proper divisors (47301910020).

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

20124802620 is a wasteful number, since it uses less digits than its factorization.

20124802620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2866812 (or 2866804 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The spelling of 20124802620 in words is "twenty billion, one hundred twenty-four million, eight hundred two thousand, six hundred twenty".