16315529779 has 2 divisors, whose sum is σ = 16315529780. Its totient is φ = 16315529778.

The previous prime is 16315529753. The next prime is 16315529807. The reversal of 16315529779 is 97792551361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16315529779 - 2⁹ = 16315529267 is a prime.

It is not a weakly prime, because it can be changed into another prime (16315529479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8157764889 + 8157764890.

It is an arithmetic number, because the mean of its divisors is an integer number (8157764890).

Almost surely, 2^16315529779 is an apocalyptic number.

16315529779 is a deficient number, since it is larger than the sum of its proper divisors (1).

16315529779 is an equidigital number, since it uses as much as digits as its factorization.

16315529779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3572100, while the sum is 55.

The spelling of 16315529779 in words is "sixteen billion, three hundred fifteen million, five hundred twenty-nine thousand, seven hundred seventy-nine".