66055105 has 8 divisors (see below), whose sum is σ = 79352064. Its totient is φ = 52786800.

The previous prime is 66055097. The next prime is 66055123. The reversal of 66055105 is 50155066.

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

It is not a de Polignac number, because 66055105 - 2³ = 66055097 is a prime.

It is a super-2 number, since 2×66055105² = 8726553793122050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1711 + ... + 11620.

It is an arithmetic number, because the mean of its divisors is an integer number (9919008).

Almost surely, 2^66055105 is an apocalyptic number.

It is an amenable number.

66055105 is a deficient number, since it is larger than the sum of its proper divisors (13296959).

66055105 is a wasteful number, since it uses less digits than its factorization.

66055105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14327.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 66055105 is about 8127.4291753297. The cubic root of 66055105 is about 404.2364417506.

The spelling of 66055105 in words is "sixty-six million, fifty-five thousand, one hundred five".