66435224463245 has 12 divisors (see below), whose sum is σ = 87628610119260. Its totient is φ = 48316526881920.

The previous prime is 66435224463227. The next prime is 66435224463317. The reversal of 66435224463245 is 54236442253466.

It can be written as a sum of positive squares in 2 ways, for example, as 25797327917449 + 40637896545796 = 5079107^2 + 6374786^2 .

It is not a de Polignac number, because 66435224463245 - 2⁸ = 66435224462989 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54905143580 + ... + 54905144789.

It is an arithmetic number, because the mean of its divisors is an integer number (7302384176605).

Almost surely, 2^{66435224463245} is an apocalyptic number.

It is an amenable number.

66435224463245 is a deficient number, since it is larger than the sum of its proper divisors (21193385656015).

66435224463245 is a wasteful number, since it uses less digits than its factorization.

66435224463245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109810288396 (or 109810288385 counting only the distinct ones).

The product of its digits is 99532800, while the sum is 56.

The spelling of 66435224463245 in words is "sixty-six trillion, four hundred thirty-five billion, two hundred twenty-four million, four hundred sixty-three thousand, two hundred forty-five".