54481606666 has 8 divisors (see below), whose sum is σ = 81723742020. Its totient is φ = 27240359328.

The previous prime is 54481606631. The next prime is 54481606727. The reversal of 54481606666 is 66660618445.

It is a happy number.

54481606666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 54395766441 + 85840225 = 233229^2 + 9265^2 .

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

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, 38181 + ... + 332296.

Almost surely, 2^54481606666 is an apocalyptic number.

54481606666 is a deficient number, since it is larger than the sum of its proper divisors (27242135354).

54481606666 is a wasteful number, since it uses less digits than its factorization.

54481606666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444008.

The product of its (nonzero) digits is 4976640, while the sum is 52.

The spelling of 54481606666 in words is "fifty-four billion, four hundred eighty-one million, six hundred six thousand, six hundred sixty-six".