45020132665 has 4 divisors (see below), whose sum is σ = 54024159204. Its totient is φ = 36016106128.

The previous prime is 45020132639. The next prime is 45020132699. The reversal of 45020132665 is 56623102054.

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 30631650361 + 14388482304 = 175019^2 + 119952^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45020132665 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 45020132665.

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, 4502013262 + ... + 4502013271.

It is an arithmetic number, because the mean of its divisors is an integer number (13506039801).

Almost surely, 2^45020132665 is an apocalyptic number.

It is an amenable number.

45020132665 is a deficient number, since it is larger than the sum of its proper divisors (9004026539).

45020132665 is an equidigital number, since it uses as much as digits as its factorization.

45020132665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9004026538.

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 45020132665 in words is "forty-five billion, twenty million, one hundred thirty-two thousand, six hundred sixty-five".