105306640666 has 8 divisors (see below), whose sum is σ = 159165762624. Its totient is φ = 52251386460.

The previous prime is 105306640661. The next prime is 105306640667. The reversal of 105306640666 is 666046603501.

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

It is a super-2 number, since 2×105306640666² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105306640661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200966610 + ... + 200967133.

It is an arithmetic number, because the mean of its divisors is an integer number (19895720328).

Almost surely, 2^105306640666 is an apocalyptic number.

105306640666 is a deficient number, since it is larger than the sum of its proper divisors (53859121958).

105306640666 is a wasteful number, since it uses less digits than its factorization.

105306640666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401933876.

The product of its (nonzero) digits is 466560, while the sum is 43.

The spelling of 105306640666 in words is "one hundred five billion, three hundred six million, six hundred forty thousand, six hundred sixty-six".