16390404007 has 2 divisors, whose sum is σ = 16390404008. Its totient is φ = 16390404006.

The previous prime is 16390403993. The next prime is 16390404029. The reversal of 16390404007 is 70040409361.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16390404007 - 2¹¹ = 16390401959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16390404077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8195202003 + 8195202004.

It is an arithmetic number, because the mean of its divisors is an integer number (8195202004).

Almost surely, 2^16390404007 is an apocalyptic number.

16390404007 is a deficient number, since it is larger than the sum of its proper divisors (1).

16390404007 is an equidigital number, since it uses as much as digits as its factorization.

16390404007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 16390404007 in words is "sixteen billion, three hundred ninety million, four hundred four thousand, seven".