16361585664 has 44 divisors (see below), whose sum is σ = 43609599144. Its totient is φ = 5453860864.

The previous prime is 16361585651. The next prime is 16361585687. The reversal of 16361585664 is 46658516361.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2659947 + ... + 2666090.

Almost surely, 2^16361585664 is an apocalyptic number.

It is an amenable number.

16361585664 is an abundant number, since it is smaller than the sum of its proper divisors (27248013480).

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

16361585664 is an equidigital number, since it uses as much as digits as its factorization.

16361585664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5326060 (or 5326042 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 51.

The spelling of 16361585664 in words is "sixteen billion, three hundred sixty-one million, five hundred eighty-five thousand, six hundred sixty-four".