15963055673 has 2 divisors, whose sum is σ = 15963055674. Its totient is φ = 15963055672.

The previous prime is 15963055663. The next prime is 15963055681. The reversal of 15963055673 is 37655036951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15102689449 + 860366224 = 122893^2 + 29332^2 .

It is a cyclic number.

It is not a de Polignac number, because 15963055673 - 2⁶ = 15963055609 is a prime.

It is not a weakly prime, because it can be changed into another prime (15963055613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7981527836 + 7981527837.

It is an arithmetic number, because the mean of its divisors is an integer number (7981527837).

Almost surely, 2^15963055673 is an apocalyptic number.

It is an amenable number.

15963055673 is a deficient number, since it is larger than the sum of its proper divisors (1).

15963055673 is an equidigital number, since it uses as much as digits as its factorization.

15963055673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2551500, while the sum is 50.

The spelling of 15963055673 in words is "fifteen billion, nine hundred sixty-three million, fifty-five thousand, six hundred seventy-three".