66201351843 has 16 divisors (see below), whose sum is σ = 97871450112. Its totient is φ = 39464292000.

The previous prime is 66201351833. The next prime is 66201351871. The reversal of 66201351843 is 34815310266.

It is not a de Polignac number, because 66201351843 - 2¹² = 66201347747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66201351833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16441443 + ... + 16445468.

It is an arithmetic number, because the mean of its divisors is an integer number (6116965632).

Almost surely, 2^66201351843 is an apocalyptic number.

66201351843 is a deficient number, since it is larger than the sum of its proper divisors (31670098269).

66201351843 is a wasteful number, since it uses less digits than its factorization.

66201351843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32886986.

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 66201351843 in words is "sixty-six billion, two hundred one million, three hundred fifty-one thousand, eight hundred forty-three".