55005383721667 has 8 divisors (see below), whose sum is σ = 55106521087680. Its totient is φ = 54904338679680.

The previous prime is 55005383721643. The next prime is 55005383721697. The reversal of 55005383721667 is 76612738350055.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55005383721667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55005383721697) 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, 21888283 + ... + 24271540.

It is an arithmetic number, because the mean of its divisors is an integer number (6888315135960).

Almost surely, 2^{55005383721667} is an apocalyptic number.

55005383721667 is a deficient number, since it is larger than the sum of its proper divisors (101137366013).

55005383721667 is a wasteful number, since it uses less digits than its factorization.

55005383721667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46162013.

The product of its (nonzero) digits is 31752000, while the sum is 58.

The spelling of 55005383721667 in words is "fifty-five trillion, five billion, three hundred eighty-three million, seven hundred twenty-one thousand, six hundred sixty-seven".