16400890367999 has 8 divisors (see below), whose sum is σ = 17123090329440. Its totient is φ = 15679450220896.

The previous prime is 16400890367957. The next prime is 16400890368001. The reversal of 16400890367999 is 99976309800461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16400890367999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16400890267999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189909464 + ... + 189995805.

It is an arithmetic number, because the mean of its divisors is an integer number (2140386291180).

Almost surely, 2^{16400890367999} is an apocalyptic number.

16400890367999 is a deficient number, since it is larger than the sum of its proper divisors (722199961441).

16400890367999 is a wasteful number, since it uses less digits than its factorization.

16400890367999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379907169.

The product of its (nonzero) digits is 158723712, while the sum is 71.

The spelling of 16400890367999 in words is "sixteen trillion, four hundred billion, eight hundred ninety million, three hundred sixty-seven thousand, nine hundred ninety-nine".