106665055666 has 16 divisors (see below), whose sum is σ = 172311048000. Its totient is φ = 49228323408.

The previous prime is 106665055597. The next prime is 106665055723. The reversal of 106665055666 is 666550566601.

It is a super-2 number, since 2×106665055666² (a number of 23 digits) contains 22 as substring.

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, 1001235 + ... + 1102633.

It is an arithmetic number, because the mean of its divisors is an integer number (10769440500).

Almost surely, 2^106665055666 is an apocalyptic number.

106665055666 is a deficient number, since it is larger than the sum of its proper divisors (65645992334).

106665055666 is a wasteful number, since it uses less digits than its factorization.

106665055666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141873.

The product of its (nonzero) digits is 5832000, while the sum is 52.

The spelling of 106665055666 in words is "one hundred six billion, six hundred sixty-five million, fifty-five thousand, six hundred sixty-six".