20263513116 has 72 divisors (see below), whose sum is σ = 60001070976. Its totient is φ = 5263248480.

The previous prime is 20263513097. The next prime is 20263513117. The reversal of 20263513116 is 61131536202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20263513117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1559976 + ... + 1572911.

It is an arithmetic number, because the mean of its divisors is an integer number (833348208).

Almost surely, 2^20263513116 is an apocalyptic number.

It is an amenable number.

20263513116 is an abundant number, since it is smaller than the sum of its proper divisors (39737557860).

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

20263513116 is a wasteful number, since it uses less digits than its factorization.

20263513116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3132919 (or 3132910 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The spelling of 20263513116 in words is "twenty billion, two hundred sixty-three million, five hundred thirteen thousand, one hundred sixteen".