20744416650 has 24 divisors (see below), whose sum is σ = 51446153664. Its totient is φ = 5531844400.

The previous prime is 20744416613. The next prime is 20744416691. The reversal of 20744416650 is 5661444702.

It is a junction number, because it is equal to n+sod(n) for n = 20744416599 and 20744416608.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69147906 + ... + 69148205.

It is an arithmetic number, because the mean of its divisors is an integer number (2143589736).

Almost surely, 2^20744416650 is an apocalyptic number.

20744416650 is an abundant number, since it is smaller than the sum of its proper divisors (30701737014).

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

20744416650 is a wasteful number, since it uses less digits than its factorization.

20744416650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138296126 (or 138296121 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 39.

The spelling of 20744416650 in words is "twenty billion, seven hundred forty-four million, four hundred sixteen thousand, six hundred fifty".