20507771030 has 24 divisors (see below), whose sum is σ = 38959090992. Its totient is φ = 7771364496.

The previous prime is 20507770981. The next prime is 20507771047. The reversal of 20507771030 is 3017770502.

It is a congruent number.

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, 2836802 + ... + 2844021.

It is an arithmetic number, because the mean of its divisors is an integer number (1623295458).

Almost surely, 2^20507771030 is an apocalyptic number.

20507771030 is a deficient number, since it is larger than the sum of its proper divisors (18451319962).

20507771030 is a wasteful number, since it uses less digits than its factorization.

20507771030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5680868 (or 5680849 counting only the distinct ones).

The product of its (nonzero) digits is 10290, while the sum is 32.

The spelling of 20507771030 in words is "twenty billion, five hundred seven million, seven hundred seventy-one thousand, thirty".