66364444383 has 8 divisors (see below), whose sum is σ = 88521287808. Its totient is φ = 44225281944.

The previous prime is 66364444381. The next prime is 66364444387. The reversal of 66364444383 is 38344446366.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66364444383 - 2¹ = 66364444381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66364444381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4411485 + ... + 4426502.

It is an arithmetic number, because the mean of its divisors is an integer number (11065160976).

Almost surely, 2^66364444383 is an apocalyptic number.

66364444383 is a deficient number, since it is larger than the sum of its proper divisors (22156843425).

66364444383 is a wasteful number, since it uses less digits than its factorization.

66364444383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8840493.

The product of its digits is 11943936, while the sum is 51.

The spelling of 66364444383 in words is "sixty-six billion, three hundred sixty-four million, four hundred forty-four thousand, three hundred eighty-three".