45166219243 has 4 divisors (see below), whose sum is σ = 45802363248. Its totient is φ = 44530075240.

The previous prime is 45166219237. The next prime is 45166219247. The reversal of 45166219243 is 34291266154.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45166219243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45166219243.

It is not an unprimeable number, because it can be changed into a prime (45166219247) 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, 318071896 + ... + 318072037.

It is an arithmetic number, because the mean of its divisors is an integer number (11450590812).

Almost surely, 2^45166219243 is an apocalyptic number.

45166219243 is a deficient number, since it is larger than the sum of its proper divisors (636144005).

45166219243 is an equidigital number, since it uses as much as digits as its factorization.

45166219243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636144004.

The product of its digits is 311040, while the sum is 43.

The spelling of 45166219243 in words is "forty-five billion, one hundred sixty-six million, two hundred nineteen thousand, two hundred forty-three".