20610731204 has 24 divisors (see below), whose sum is σ = 43013701248. Its totient is φ = 8449119360.

The previous prime is 20610731203. The next prime is 20610731209. The reversal of 20610731204 is 40213701602.

It is not an unprimeable number, because it can be changed into a prime (20610731203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16001477 + ... + 16002764.

It is an arithmetic number, because the mean of its divisors is an integer number (1792237552).

Almost surely, 2^20610731204 is an apocalyptic number.

It is an amenable number.

20610731204 is an abundant number, since it is smaller than the sum of its proper divisors (22402970044).

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

20610731204 is a wasteful number, since it uses less digits than its factorization.

20610731204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32004275 (or 32004273 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The spelling of 20610731204 in words is "twenty billion, six hundred ten million, seven hundred thirty-one thousand, two hundred four".