16416787913 has 2 divisors, whose sum is σ = 16416787914. Its totient is φ = 16416787912.

The previous prime is 16416787889. The next prime is 16416787963. The reversal of 16416787913 is 31978761461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14734803769 + 1681984144 = 121387^2 + 41012^2 .

It is a cyclic number.

It is not a de Polignac number, because 16416787913 - 2⁸ = 16416787657 is a prime.

It is not a weakly prime, because it can be changed into another prime (16416787963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8208393956 + 8208393957.

It is an arithmetic number, because the mean of its divisors is an integer number (8208393957).

Almost surely, 2^16416787913 is an apocalyptic number.

It is an amenable number.

16416787913 is a deficient number, since it is larger than the sum of its proper divisors (1).

16416787913 is an equidigital number, since it uses as much as digits as its factorization.

16416787913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 53.

The spelling of 16416787913 in words is "sixteen billion, four hundred sixteen million, seven hundred eighty-seven thousand, nine hundred thirteen".