20705922930 has 96 divisors (see below), whose sum is σ = 62425867392. Its totient is φ = 4302524160.

The previous prime is 20705922911. The next prime is 20705922953. The reversal of 20705922930 is 3922950702.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 382027 + ... + 432846.

It is an arithmetic number, because the mean of its divisors is an integer number (650269452).

Almost surely, 2^20705922930 is an apocalyptic number.

20705922930 is an abundant number, since it is smaller than the sum of its proper divisors (41719944462).

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

20705922930 is a wasteful number, since it uses less digits than its factorization.

20705922930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814912 (or 814901 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 39.

The spelling of 20705922930 in words is "twenty billion, seven hundred five million, nine hundred twenty-two thousand, nine hundred thirty".