16408667785996 has 24 divisors (see below), whose sum is σ = 28933502285520. Its totient is φ = 8141989012992.

The previous prime is 16408667785967. The next prime is 16408667785997. The reversal of 16408667785996 is 69958776680461.

It is a super-2 number, since 2×16408667785996² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16408667785997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2703466 + ... + 6334513.

It is an arithmetic number, because the mean of its divisors is an integer number (1205562595230).

Almost surely, 2^{16408667785996} is an apocalyptic number.

It is an amenable number.

16408667785996 is a deficient number, since it is larger than the sum of its proper divisors (12524834499524).

16408667785996 is a wasteful number, since it uses less digits than its factorization.

16408667785996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9041433 (or 9041431 counting only the distinct ones).

The product of its (nonzero) digits is 6584094720, while the sum is 82.

The spelling of 16408667785996 in words is "sixteen trillion, four hundred eight billion, six hundred sixty-seven million, seven hundred eighty-five thousand, nine hundred ninety-six".