16426604149 has 2 divisors, whose sum is σ = 16426604150. Its totient is φ = 16426604148.

The previous prime is 16426604143. The next prime is 16426604171. The reversal of 16426604149 is 94140662461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14378408100 + 2048196049 = 119910^2 + 45257^2 .

It is a cyclic number.

It is not a de Polignac number, because 16426604149 - 2³ = 16426604141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16426604141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8213302074 + 8213302075.

It is an arithmetic number, because the mean of its divisors is an integer number (8213302075).

Almost surely, 2^16426604149 is an apocalyptic number.

It is an amenable number.

16426604149 is a deficient number, since it is larger than the sum of its proper divisors (1).

16426604149 is an equidigital number, since it uses as much as digits as its factorization.

16426604149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 43.

The spelling of 16426604149 in words is "sixteen billion, four hundred twenty-six million, six hundred four thousand, one hundred forty-nine".