65005305445 has 8 divisors (see below), whose sum is σ = 79285159800. Its totient is φ = 51151715520.

The previous prime is 65005305389. The next prime is 65005305457. The reversal of 65005305445 is 54450350056.

It can be written as a sum of positive squares in 4 ways, for example, as 1727399844 + 63277905601 = 41562^2 + 251551^2 .

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

It is not a de Polignac number, because 65005305445 - 2⁷ = 65005305317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106565770 + ... + 106566379.

It is an arithmetic number, because the mean of its divisors is an integer number (9910644975).

Almost surely, 2^65005305445 is an apocalyptic number.

It is an amenable number.

65005305445 is a deficient number, since it is larger than the sum of its proper divisors (14279854355).

65005305445 is a wasteful number, since it uses less digits than its factorization.

65005305445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213132215.

The product of its (nonzero) digits is 180000, while the sum is 37.

The spelling of 65005305445 in words is "sixty-five billion, five million, three hundred five thousand, four hundred forty-five".