45165253645 has 4 divisors (see below), whose sum is σ = 54198304380. Its totient is φ = 36132202912.

The previous prime is 45165253633. The next prime is 45165253681. The reversal of 45165253645 is 54635256154.

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 31501280196 + 13663973449 = 177486^2 + 116893^2 .

It is a cyclic number.

It is not a de Polignac number, because 45165253645 - 2¹¹ = 45165251597 is a prime.

It is a super-3 number, since 3×45165253645³ (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45165253595 and 45165253604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4516525360 + ... + 4516525369.

It is an arithmetic number, because the mean of its divisors is an integer number (13549576095).

Almost surely, 2^45165253645 is an apocalyptic number.

It is an amenable number.

45165253645 is a deficient number, since it is larger than the sum of its proper divisors (9033050735).

45165253645 is an equidigital number, since it uses as much as digits as its factorization.

45165253645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9033050734.

The product of its digits is 2160000, while the sum is 46.

The spelling of 45165253645 in words is "forty-five billion, one hundred sixty-five million, two hundred fifty-three thousand, six hundred forty-five".