20200020624 has 80 divisors (see below), whose sum is σ = 66264627840. Its totient is φ = 5771433600.

The previous prime is 20200020623. The next prime is 20200020647. The reversal of 20200020624 is 42602000202.

It is a happy number.

20200020624 is a `hidden beast` number, since 2 + 0 + 20 + 0 + 0 + 20 + 624 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20200020597 and 20200020606.

It is not an unprimeable number, because it can be changed into a prime (20200020623) 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, 3336927 + ... + 3342974.

It is an arithmetic number, because the mean of its divisors is an integer number (828307848).

Almost surely, 2^20200020624 is an apocalyptic number.

20200020624 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20200020624 is an abundant number, since it is smaller than the sum of its proper divisors (46064607216).

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

20200020624 is a wasteful number, since it uses less digits than its factorization.

20200020624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6679925 (or 6679913 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 20200020624 its reverse (42602000202), we get a palindrome (62802020826).

The spelling of 20200020624 in words is "twenty billion, two hundred million, twenty thousand, six hundred twenty-four".