66231554366 has 8 divisors (see below), whose sum is σ = 99525694680. Its totient is φ = 33056322808.

The previous prime is 66231554359. The next prime is 66231554393. The reversal of 66231554366 is 66345513266.

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

It is a self number, because there is not a number n which added to its sum of digits gives 66231554366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29725796 + ... + 29728023.

It is an arithmetic number, because the mean of its divisors is an integer number (12440711835).

Almost surely, 2^66231554366 is an apocalyptic number.

66231554366 is a deficient number, since it is larger than the sum of its proper divisors (33294140314).

66231554366 is a wasteful number, since it uses less digits than its factorization.

66231554366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59454378.

The product of its digits is 2332800, while the sum is 47.

The spelling of 66231554366 in words is "sixty-six billion, two hundred thirty-one million, five hundred fifty-four thousand, three hundred sixty-six".