15960077647 has 2 divisors, whose sum is σ = 15960077648. Its totient is φ = 15960077646.

The previous prime is 15960077641. The next prime is 15960077659. The reversal of 15960077647 is 74677006951.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15960077647 - 2³¹ = 13812593999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15960077594 and 15960077603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15960077641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7980038823 + 7980038824.

It is an arithmetic number, because the mean of its divisors is an integer number (7980038824).

Almost surely, 2^15960077647 is an apocalyptic number.

15960077647 is a deficient number, since it is larger than the sum of its proper divisors (1).

15960077647 is an equidigital number, since it uses as much as digits as its factorization.

15960077647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2222640, while the sum is 52.

The spelling of 15960077647 in words is "fifteen billion, nine hundred sixty million, seventy-seven thousand, six hundred forty-seven".