45666017281 has 2 divisors, whose sum is σ = 45666017282. Its totient is φ = 45666017280.

The previous prime is 45666017269. The next prime is 45666017291. The reversal of 45666017281 is 18271066654.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39856528881 + 5809488400 = 199641^2 + 76220^2 .

It is a cyclic number.

It is not a de Polignac number, because 45666017281 - 2¹⁵ = 45665984513 is a prime.

It is a super-2 number, since 2×45666017281² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45666017291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22833008640 + 22833008641.

It is an arithmetic number, because the mean of its divisors is an integer number (22833008641).

Almost surely, 2^45666017281 is an apocalyptic number.

It is an amenable number.

45666017281 is a deficient number, since it is larger than the sum of its proper divisors (1).

45666017281 is an equidigital number, since it uses as much as digits as its factorization.

45666017281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 45666017281 in words is "forty-five billion, six hundred sixty-six million, seventeen thousand, two hundred eighty-one".