45666565563 has 4 divisors (see below), whose sum is σ = 60888754088. Its totient is φ = 30444377040.

The previous prime is 45666565559. The next prime is 45666565583. The reversal of 45666565563 is 36556566654.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 45666565563 - 2² = 45666565559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45666565583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7611094258 + ... + 7611094263.

It is an arithmetic number, because the mean of its divisors is an integer number (15222188522).

Almost surely, 2^45666565563 is an apocalyptic number.

45666565563 is a deficient number, since it is larger than the sum of its proper divisors (15222188525).

45666565563 is a wasteful number, since it uses less digits than its factorization.

45666565563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15222188524.

The product of its digits is 58320000, while the sum is 57.

The spelling of 45666565563 in words is "forty-five billion, six hundred sixty-six million, five hundred sixty-five thousand, five hundred sixty-three".