45222516665 has 4 divisors (see below), whose sum is σ = 54267020004. Its totient is φ = 36178013328.

The previous prime is 45222516641. The next prime is 45222516679. The reversal of 45222516665 is 56661522254.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5409896704 + 39812619961 = 73552^2 + 199531^2 .

It is a cyclic number.

It is not a de Polignac number, because 45222516665 - 2²² = 45218322361 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4522251662 + ... + 4522251671.

It is an arithmetic number, because the mean of its divisors is an integer number (13566755001).

Almost surely, 2^45222516665 is an apocalyptic number.

It is an amenable number.

45222516665 is a deficient number, since it is larger than the sum of its proper divisors (9044503339).

45222516665 is an equidigital number, since it uses as much as digits as its factorization.

45222516665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9044503338.

The product of its digits is 864000, while the sum is 44.

The spelling of 45222516665 in words is "forty-five billion, two hundred twenty-two million, five hundred sixteen thousand, six hundred sixty-five".