106666664 has 16 divisors (see below), whose sum is σ = 215384820. Its totient is φ = 49230720.

The previous prime is 106666643. The next prime is 106666673. The reversal of 106666664 is 466666601.

It can be written as a sum of positive squares in 2 ways, for example, as 85414564 + 21252100 = 9242^2 + 4610^2 .

It is a super-2 number, since 2×106666664² = 22755554417777792, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 512717 + ... + 512924.

Almost surely, 2^106666664 is an apocalyptic number.

It is an amenable number.

106666664 is an abundant number, since it is smaller than the sum of its proper divisors (108718156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

106666664 is a wasteful number, since it uses less digits than its factorization.

106666664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025660 (or 1025656 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 106666664 is about 10327.9554607870. The cubic root of 106666664 is about 474.2524366466.

The spelling of 106666664 in words is "one hundred six million, six hundred sixty-six thousand, six hundred sixty-four".