66382446574 has 8 divisors (see below), whose sum is σ = 99585745200. Its totient is φ = 33187198176.

The previous prime is 66382446553. The next prime is 66382446577. The reversal of 66382446574 is 47564428366.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66382446577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1991899 + ... + 2024950.

It is an arithmetic number, because the mean of its divisors is an integer number (12448218150).

Almost surely, 2^66382446574 is an apocalyptic number.

66382446574 is a deficient number, since it is larger than the sum of its proper divisors (33203298626).

66382446574 is a wasteful number, since it uses less digits than its factorization.

66382446574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4025114.

The product of its digits is 23224320, while the sum is 55.

The spelling of 66382446574 in words is "sixty-six billion, three hundred eighty-two million, four hundred forty-six thousand, five hundred seventy-four".