66360642843 has 32 divisors (see below), whose sum is σ = 100889574912. Its totient is φ = 38405664000.

The previous prime is 66360642827. The next prime is 66360642871. The reversal of 66360642843 is 34824606366.

It is a happy number.

It is not a de Polignac number, because 66360642843 - 2⁴ = 66360642827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66360642792 and 66360642801.

It is not an unprimeable number, because it can be changed into a prime (66360642443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 383421 + ... + 528897.

It is an arithmetic number, because the mean of its divisors is an integer number (3152799216).

Almost surely, 2^66360642843 is an apocalyptic number.

66360642843 is a deficient number, since it is larger than the sum of its proper divisors (34528932069).

66360642843 is a wasteful number, since it uses less digits than its factorization.

66360642843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146115.

The product of its (nonzero) digits is 2985984, while the sum is 48.

The spelling of 66360642843 in words is "sixty-six billion, three hundred sixty million, six hundred forty-two thousand, eight hundred forty-three".