16364063646 has 48 divisors (see below), whose sum is σ = 40580957664. Its totient is φ = 4668475392.

The previous prime is 16364063641. The next prime is 16364063647. The reversal of 16364063646 is 64636046361.

16364063646 is a `hidden beast` number, since 1 + 6 + 3 + 6 + 4 + 0 + 636 + 4 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16364063641) 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, 11691 + ... + 181286.

It is an arithmetic number, because the mean of its divisors is an integer number (845436618).

Almost surely, 2^16364063646 is an apocalyptic number.

16364063646 is an abundant number, since it is smaller than the sum of its proper divisors (24216894018).

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

16364063646 is a wasteful number, since it uses less digits than its factorization.

16364063646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193665 (or 193662 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 45.

The spelling of 16364063646 in words is "sixteen billion, three hundred sixty-four million, sixty-three thousand, six hundred forty-six".