45265966565 has 8 divisors (see below), whose sum is σ = 55644017688. Its totient is φ = 35329534720.

The previous prime is 45265966541. The next prime is 45265966579. The reversal of 45265966565 is 56566956254.

It is a Cunningham number, because it is equal to 212758²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 45265966564 = 1^2 + 212758^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45265966565 - 2²² = 45261772261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110404592 + ... + 110405001.

It is an arithmetic number, because the mean of its divisors is an integer number (6955502211).

Almost surely, 2^45265966565 is an apocalyptic number.

It is an amenable number.

45265966565 is a deficient number, since it is larger than the sum of its proper divisors (10378051123).

45265966565 is a wasteful number, since it uses less digits than its factorization.

45265966565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220809639.

The product of its digits is 58320000, while the sum is 59.

The spelling of 45265966565 in words is "forty-five billion, two hundred sixty-five million, nine hundred sixty-six thousand, five hundred sixty-five".