16421767066504 has 48 divisors (see below), whose sum is σ = 32527601259120. Its totient is φ = 7771329064800.

The previous prime is 16421767066483. The next prime is 16421767066513. The reversal of 16421767066504 is 40566076712461.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 330147 + ... + 5740429.

It is an arithmetic number, because the mean of its divisors is an integer number (677658359565).

Almost surely, 2^{16421767066504} is an apocalyptic number.

It is an amenable number.

16421767066504 is a deficient number, since it is larger than the sum of its proper divisors (16105834192616).

16421767066504 is a wasteful number, since it uses less digits than its factorization.

16421767066504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5411378 (or 5411355 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 55.

The spelling of 16421767066504 in words is "sixteen trillion, four hundred twenty-one billion, seven hundred sixty-seven million, sixty-six thousand, five hundred four".