66355340105 has 8 divisors (see below), whose sum is σ = 80747907264. Its totient is φ = 52336606000.

The previous prime is 66355340069. The next prime is 66355340123. The reversal of 66355340105 is 50104355366.

66355340105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 66355340105 - 2⁶ = 66355340041 is a prime.

It is a super-2 number, since 2×66355340105² (a number of 22 digits) 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, 93457871 + ... + 93458580.

It is an arithmetic number, because the mean of its divisors is an integer number (10093488408).

Almost surely, 2^66355340105 is an apocalyptic number.

It is an amenable number.

66355340105 is a deficient number, since it is larger than the sum of its proper divisors (14392567159).

66355340105 is a wasteful number, since it uses less digits than its factorization.

66355340105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186916527.

The product of its (nonzero) digits is 162000, while the sum is 38.

The spelling of 66355340105 in words is "sixty-six billion, three hundred fifty-five million, three hundred forty thousand, one hundred five".