16671404756504 has 16 divisors (see below), whose sum is σ = 31287483096720. Its totient is φ = 8328075930720.

The previous prime is 16671404756497. The next prime is 16671404756509. The reversal of 16671404756504 is 40565740417661.

It is a self number, because there is not a number n which added to its sum of digits gives 16671404756504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16671404756509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 953296652 + ... + 953314139.

It is an arithmetic number, because the mean of its divisors is an integer number (1955467693545).

Almost surely, 2^{16671404756504} is an apocalyptic number.

It is an amenable number.

16671404756504 is a deficient number, since it is larger than the sum of its proper divisors (14616078340216).

16671404756504 is a wasteful number, since it uses less digits than its factorization.

16671404756504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906611890 (or 1906611886 counting only the distinct ones).

The product of its (nonzero) digits is 16934400, while the sum is 56.

The spelling of 16671404756504 in words is "sixteen trillion, six hundred seventy-one billion, four hundred four million, seven hundred fifty-six thousand, five hundred four".