15604360361 has 2 divisors, whose sum is σ = 15604360362. Its totient is φ = 15604360360.

The previous prime is 15604360283. The next prime is 15604360363. The reversal of 15604360361 is 16306340651.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12528548761 + 3075811600 = 111931^2 + 55460^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15604360361 is a prime.

Together with 15604360363, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (15604360363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7802180180 + 7802180181.

It is an arithmetic number, because the mean of its divisors is an integer number (7802180181).

Almost surely, 2^15604360361 is an apocalyptic number.

It is an amenable number.

15604360361 is a deficient number, since it is larger than the sum of its proper divisors (1).

15604360361 is an equidigital number, since it uses as much as digits as its factorization.

15604360361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 15604360361 in words is "fifteen billion, six hundred four million, three hundred sixty thousand, three hundred sixty-one".