16648390536 has 32 divisors (see below), whose sum is σ = 42963590400. Its totient is φ = 5370448320.

The previous prime is 16648390529. The next prime is 16648390543. The reversal of 16648390536 is 63509384661.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16648390529) and next prime (16648390543).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11187691 + ... + 11189178.

It is an arithmetic number, because the mean of its divisors is an integer number (1342612200).

Almost surely, 2^16648390536 is an apocalyptic number.

It is an amenable number.

16648390536 is an abundant number, since it is smaller than the sum of its proper divisors (26315199864).

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

16648390536 is a wasteful number, since it uses less digits than its factorization.

16648390536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22376909 (or 22376905 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 51.

The spelling of 16648390536 in words is "sixteen billion, six hundred forty-eight million, three hundred ninety thousand, five hundred thirty-six".