66636316614543 has 48 divisors (see below), whose sum is σ = 96920405275680. Its totient is φ = 40703650271232.

The previous prime is 66636316614503. The next prime is 66636316614563. The reversal of 66636316614543 is 34541661363666.

It is a happy number.

It is not a de Polignac number, because 66636316614543 - 2⁹ = 66636316614031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66636316614503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 807975313 + ... + 808057781.

It is an arithmetic number, because the mean of its divisors is an integer number (2019175109910).

Almost surely, 2^{66636316614543} is an apocalyptic number.

66636316614543 is a deficient number, since it is larger than the sum of its proper divisors (30284088661137).

66636316614543 is a wasteful number, since it uses less digits than its factorization.

66636316614543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94268 (or 94255 counting only the distinct ones).

The product of its digits is 100776960, while the sum is 60.

The spelling of 66636316614543 in words is "sixty-six trillion, six hundred thirty-six billion, three hundred sixteen million, six hundred fourteen thousand, five hundred forty-three".