16687488696 has 64 divisors (see below), whose sum is σ = 43068698400. Its totient is φ = 5384060928.

The previous prime is 16687488689. The next prime is 16687488703. The reversal of 16687488696 is 69688478661.

It is an interprime number because it is at equal distance from previous prime (16687488689) and next prime (16687488703).

It is a self number, because there is not a number n which added to its sum of digits gives 16687488696.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122700 + ... + 220068.

Almost surely, 2^16687488696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16687488696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21534349200).

16687488696 is an abundant number, since it is smaller than the sum of its proper divisors (26381209704).

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

16687488696 is a wasteful number, since it uses less digits than its factorization.

16687488696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97608 (or 97604 counting only the distinct ones).

The product of its digits is 167215104, while the sum is 69.

The spelling of 16687488696 in words is "sixteen billion, six hundred eighty-seven million, four hundred eighty-eight thousand, six hundred ninety-six".