20105613624 has 32 divisors (see below), whose sum is σ = 50285664000. Its totient is φ = 6698987232.

The previous prime is 20105613613. The next prime is 20105613641. The reversal of 20105613624 is 42631650102.

It is a junction number, because it is equal to n+sod(n) for n = 20105613591 and 20105613600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122944 + ... + 235215.

It is an arithmetic number, because the mean of its divisors is an integer number (1571427000).

Almost surely, 2^20105613624 is an apocalyptic number.

20105613624 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20105613624 is an abundant number, since it is smaller than the sum of its proper divisors (30180050376).

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

20105613624 is a wasteful number, since it uses less digits than its factorization.

20105613624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360507 (or 360503 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 20105613624 in words is "twenty billion, one hundred five million, six hundred thirteen thousand, six hundred twenty-four".