54666066407 has 4 divisors (see below), whose sum is σ = 56429487936. Its totient is φ = 52902644880.

The previous prime is 54666066397. The next prime is 54666066421. The reversal of 54666066407 is 70466066645.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54666066407 - 2¹⁰ = 54666065383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54666066457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 881710718 + ... + 881710779.

It is an arithmetic number, because the mean of its divisors is an integer number (14107371984).

Almost surely, 2^54666066407 is an apocalyptic number.

54666066407 is a deficient number, since it is larger than the sum of its proper divisors (1763421529).

54666066407 is a wasteful number, since it uses less digits than its factorization.

54666066407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1763421528.

The product of its (nonzero) digits is 4354560, while the sum is 50.

The spelling of 54666066407 in words is "fifty-four billion, six hundred sixty-six million, sixty-six thousand, four hundred seven".