65565212445 has 48 divisors (see below), whose sum is σ = 120155106240. Its totient is φ = 32981651712.

The previous prime is 65565212431. The next prime is 65565212459. The reversal of 65565212445 is 54421256556.

65565212445 is a `hidden beast` number, since 6 + 5 + 565 + 21 + 24 + 45 = 666.

It is an interprime number because it is at equal distance from previous prime (65565212431) and next prime (65565212459).

It is not a de Polignac number, because 65565212445 - 2⁴ = 65565212429 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 65565212445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25177 + ... + 362993.

It is an arithmetic number, because the mean of its divisors is an integer number (2503231380).

Almost surely, 2^65565212445 is an apocalyptic number.

It is an amenable number.

65565212445 is a deficient number, since it is larger than the sum of its proper divisors (54589893795).

65565212445 is a wasteful number, since it uses less digits than its factorization.

65565212445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338074 (or 338071 counting only the distinct ones).

The product of its digits is 1440000, while the sum is 45.

The spelling of 65565212445 in words is "sixty-five billion, five hundred sixty-five million, two hundred twelve thousand, four hundred forty-five".