45566445539 has 2 divisors, whose sum is σ = 45566445540. Its totient is φ = 45566445538.

The previous prime is 45566445523. The next prime is 45566445559. The reversal of 45566445539 is 93554466554.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45566445539 - 2⁴ = 45566445523 is a prime.

It is not a weakly prime, because it can be changed into another prime (45566445559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22783222769 + 22783222770.

It is an arithmetic number, because the mean of its divisors is an integer number (22783222770).

Almost surely, 2^45566445539 is an apocalyptic number.

45566445539 is a deficient number, since it is larger than the sum of its proper divisors (1).

45566445539 is an equidigital number, since it uses as much as digits as its factorization.

45566445539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880000, while the sum is 56.

The spelling of 45566445539 in words is "forty-five billion, five hundred sixty-six million, four hundred forty-five thousand, five hundred thirty-nine".