16290646386947 has 2 divisors, whose sum is σ = 16290646386948. Its totient is φ = 16290646386946.

The previous prime is 16290646386913. The next prime is 16290646386953. The reversal of 16290646386947 is 74968364609261.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16290646386947 is a prime.

It is not a weakly prime, because it can be changed into another prime (16290646386967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8145323193473 + 8145323193474.

It is an arithmetic number, because the mean of its divisors is an integer number (8145323193474).

Almost surely, 2^{16290646386947} is an apocalyptic number.

16290646386947 is a deficient number, since it is larger than the sum of its proper divisors (1).

16290646386947 is an equidigital number, since it uses as much as digits as its factorization.

16290646386947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 564350976, while the sum is 71.

The spelling of 16290646386947 in words is "sixteen trillion, two hundred ninety billion, six hundred forty-six million, three hundred eighty-six thousand, nine hundred forty-seven".