66376442223 has 64 divisors (see below), whose sum is σ = 121075691520. Its totient is φ = 34998034176.

The previous prime is 66376442207. The next prime is 66376442281. The reversal of 66376442223 is 32224467366.

It is a happy number.

66376442223 is a `hidden beast` number, since 6 + 637 + 6 + 4 + 4 + 2 + 2 + 2 + 3 = 666.

It is not a de Polignac number, because 66376442223 - 2⁴ = 66376442207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66376442023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10554586 + ... + 10560872.

It is an arithmetic number, because the mean of its divisors is an integer number (1891807680).

Almost surely, 2^66376442223 is an apocalyptic number.

66376442223 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

66376442223 is a deficient number, since it is larger than the sum of its proper divisors (54699249297).

66376442223 is a wasteful number, since it uses less digits than its factorization.

66376442223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10613 (or 10607 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 45.

The spelling of 66376442223 in words is "sixty-six billion, three hundred seventy-six million, four hundred forty-two thousand, two hundred twenty-three".