45165611 has 4 divisors (see below), whose sum is σ = 45784392. Its totient is φ = 44546832.

The previous prime is 45165607. The next prime is 45165619. The reversal of 45165611 is 11656154.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11656154 = 2 ⋅5828077.

It is a cyclic number.

It is not a de Polignac number, because 45165611 - 2² = 45165607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45165619) 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, 309281 + ... + 309426.

It is an arithmetic number, because the mean of its divisors is an integer number (11446098).

Almost surely, 2^45165611 is an apocalyptic number.

45165611 is a deficient number, since it is larger than the sum of its proper divisors (618781).

45165611 is an equidigital number, since it uses as much as digits as its factorization.

45165611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618780.

The product of its digits is 3600, while the sum is 29.

The square root of 45165611 is about 6720.5365113211. The cubic root of 45165611 is about 356.1251374874.

It can be divided in two parts, 4 and 5165611, that added together give a palindrome (5165615).

The spelling of 45165611 in words is "forty-five million, one hundred sixty-five thousand, six hundred eleven".