16404103536536 has 32 divisors (see below), whose sum is σ = 32391217358400. Its totient is φ = 7766837500320.

The previous prime is 16404103536529. The next prime is 16404103536577. The reversal of 16404103536536 is 63563530140461.

It is a happy number.

It is a super-2 number, since 2×16404103536536² (a number of 27 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 7 ways as a sum of consecutive naturals, for example, 24159410 + ... + 24829121.

It is an arithmetic number, because the mean of its divisors is an integer number (1012225542450).

Almost surely, 2^{16404103536536} is an apocalyptic number.

It is an amenable number.

16404103536536 is a deficient number, since it is larger than the sum of its proper divisors (15987113821864).

16404103536536 is a wasteful number, since it uses less digits than its factorization.

16404103536536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48990759 (or 48990755 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 47.

Adding to 16404103536536 its reverse (63563530140461), we get a palindrome (79967633676997).

The spelling of 16404103536536 in words is "sixteen trillion, four hundred four billion, one hundred three million, five hundred thirty-six thousand, five hundred thirty-six".