16126466849 has 16 divisors (see below), whose sum is σ = 17372544336. Its totient is φ = 14913945600.

The previous prime is 16126466843. The next prime is 16126466891. The reversal of 16126466849 is 94866462161.

It can be written as a sum of positive squares in 8 ways, for example, as 1283430625 + 14843036224 = 35825^2 + 121832^2 .

It is a cyclic number.

It is not a de Polignac number, because 16126466849 - 2⁸ = 16126466593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16126466849.

It is not an unprimeable number, because it can be changed into a prime (16126466843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1092929 + ... + 1107585.

It is an arithmetic number, because the mean of its divisors is an integer number (1085784021).

Almost surely, 2^16126466849 is an apocalyptic number.

It is an amenable number.

16126466849 is a deficient number, since it is larger than the sum of its proper divisors (1246077487).

16126466849 is a wasteful number, since it uses less digits than its factorization.

16126466849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15796.

The product of its digits is 2985984, while the sum is 53.

The spelling of 16126466849 in words is "sixteen billion, one hundred twenty-six million, four hundred sixty-six thousand, eight hundred forty-nine".