15663541079 has 2 divisors, whose sum is σ = 15663541080. Its totient is φ = 15663541078.

The previous prime is 15663541037. The next prime is 15663541087. The reversal of 15663541079 is 97014536651.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15663541079 - 2¹⁶ = 15663475543 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15663544079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7831770539 + 7831770540.

It is an arithmetic number, because the mean of its divisors is an integer number (7831770540).

Almost surely, 2^15663541079 is an apocalyptic number.

15663541079 is a deficient number, since it is larger than the sum of its proper divisors (1).

15663541079 is an equidigital number, since it uses as much as digits as its factorization.

15663541079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 680400, while the sum is 47.

The spelling of 15663541079 in words is "fifteen billion, six hundred sixty-three million, five hundred forty-one thousand, seventy-nine".