66345020103632 has 40 divisors (see below), whose sum is σ = 130969991517984. Its totient is φ = 32546323764864.

The previous prime is 66345020103587. The next prime is 66345020103641. The reversal of 66345020103632 is 23630102054366.

It is a self number, because there is not a number n which added to its sum of digits gives 66345020103632.

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, 119021123 + ... + 119577245.

Almost surely, 2^{66345020103632} is an apocalyptic number.

It is an amenable number.

66345020103632 is a deficient number, since it is larger than the sum of its proper divisors (64624971414352).

66345020103632 is a wasteful number, since it uses less digits than its factorization.

66345020103632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696867 (or 696861 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 41.

Adding to 66345020103632 its reverse (23630102054366), we get a palindrome (89975122157998).

The spelling of 66345020103632 in words is "sixty-six trillion, three hundred forty-five billion, twenty million, one hundred three thousand, six hundred thirty-two".