15613366361 has 2 divisors, whose sum is σ = 15613366362. Its totient is φ = 15613366360.

The previous prime is 15613366357. The next prime is 15613366369. The reversal of 15613366361 is 16366331651.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14825497600 + 787868761 = 121760^2 + 28069^2 .

It is a cyclic number.

It is not a de Polignac number, because 15613366361 - 2² = 15613366357 is a prime.

It is not a weakly prime, because it can be changed into another prime (15613366369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7806683180 + 7806683181.

It is an arithmetic number, because the mean of its divisors is an integer number (7806683181).

Almost surely, 2^15613366361 is an apocalyptic number.

It is an amenable number.

15613366361 is a deficient number, since it is larger than the sum of its proper divisors (1).

15613366361 is an equidigital number, since it uses as much as digits as its factorization.

15613366361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 41.

The spelling of 15613366361 in words is "fifteen billion, six hundred thirteen million, three hundred sixty-six thousand, three hundred sixty-one".