545659666956479 has 2 divisors, whose sum is σ = 545659666956480. Its totient is φ = 545659666956478.

The previous prime is 545659666956427. The next prime is 545659666956587. The reversal of 545659666956479 is 974659666956545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545659666956479 - 2³² = 545655371989183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545659666952479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272829833478239 + 272829833478240.

It is an arithmetic number, because the mean of its divisors is an integer number (272829833478240).

Almost surely, 2^{545659666956479} is an apocalyptic number.

545659666956479 is a deficient number, since it is larger than the sum of its proper divisors (1).

545659666956479 is an equidigital number, since it uses as much as digits as its factorization.

545659666956479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 396809280000, while the sum is 92.

The spelling of 545659666956479 in words is "five hundred forty-five trillion, six hundred fifty-nine billion, six hundred sixty-six million, nine hundred fifty-six thousand, four hundred seventy-nine".