916412256605399 has 2 divisors, whose sum is σ = 916412256605400. Its totient is φ = 916412256605398.

The previous prime is 916412256605371. The next prime is 916412256605471. The reversal of 916412256605399 is 993506652214619.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-916412256605399 is a prime.

It is a super-2 number, since 2×916412256605399² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (916412256605309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 458206128302699 + 458206128302700.

It is an arithmetic number, because the mean of its divisors is an integer number (458206128302700).

Almost surely, 2^{916412256605399} is an apocalyptic number.

916412256605399 is a deficient number, since it is larger than the sum of its proper divisors (1).

916412256605399 is an equidigital number, since it uses as much as digits as its factorization.

916412256605399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 188956800, while the sum is 68.

The spelling of 916412256605399 in words is "nine hundred sixteen trillion, four hundred twelve billion, two hundred fifty-six million, six hundred five thousand, three hundred ninety-nine".