16245303664 has 20 divisors (see below), whose sum is σ = 31499696440. Its totient is φ = 8116349760.

The previous prime is 16245303593. The next prime is 16245303703. The reversal of 16245303664 is 46630354261.

It is a happy number.

It is a super-2 number, since 2×16245303664² (a number of 21 digits) contains 22 as substring.

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, 372579 + ... + 413890.

It is an arithmetic number, because the mean of its divisors is an integer number (1574984822).

Almost surely, 2^16245303664 is an apocalyptic number.

It is an amenable number.

16245303664 is a deficient number, since it is larger than the sum of its proper divisors (15254392776).

16245303664 is a wasteful number, since it uses less digits than its factorization.

16245303664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787768 (or 787762 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 16245303664 in words is "sixteen billion, two hundred forty-five million, three hundred three thousand, six hundred sixty-four".