16523863116 has 24 divisors (see below), whose sum is σ = 40823662320. Its totient is φ = 5183956992.

The previous prime is 16523863051. The next prime is 16523863117. The reversal of 16523863116 is 61136832561.

It is not an unprimeable number, because it can be changed into a prime (16523863117) 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, 40499461 + ... + 40499868.

It is an arithmetic number, because the mean of its divisors is an integer number (1700985930).

Almost surely, 2^16523863116 is an apocalyptic number.

It is an amenable number.

16523863116 is an abundant number, since it is smaller than the sum of its proper divisors (24299799204).

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

16523863116 is a wasteful number, since it uses less digits than its factorization.

16523863116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80999353 (or 80999351 counting only the distinct ones).

The product of its digits is 155520, while the sum is 42.

The spelling of 16523863116 in words is "sixteen billion, five hundred twenty-three million, eight hundred sixty-three thousand, one hundred sixteen".