12416461649 has 4 divisors (see below), whose sum is σ = 13146841764. Its totient is φ = 11686081536.

The previous prime is 12416461597. The next prime is 12416461661. The reversal of 12416461649 is 94616461421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11622349249 + 794112400 = 107807^2 + 28180^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12416461649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12416461669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365190032 + ... + 365190065.

It is an arithmetic number, because the mean of its divisors is an integer number (3286710441).

Almost surely, 2^12416461649 is an apocalyptic number.

It is an amenable number.

12416461649 is a deficient number, since it is larger than the sum of its proper divisors (730380115).

12416461649 is an equidigital number, since it uses as much as digits as its factorization.

12416461649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730380114.

The product of its digits is 248832, while the sum is 44.

The spelling of 12416461649 in words is "twelve billion, four hundred sixteen million, four hundred sixty-one thousand, six hundred forty-nine".