106665658 has 16 divisors (see below), whose sum is σ = 183731040. Its totient is φ = 45932400.

The previous prime is 106665631. The next prime is 106665659. The reversal of 106665658 is 856566601.

It is a super-2 number, since 2×106665658² = 22755125193145928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106665659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127173 + ... + 128008.

It is an arithmetic number, because the mean of its divisors is an integer number (11483190).

Almost surely, 2^106665658 is an apocalyptic number.

106665658 is a deficient number, since it is larger than the sum of its proper divisors (77065382).

106665658 is a wasteful number, since it uses less digits than its factorization.

106665658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255213.

The product of its (nonzero) digits is 259200, while the sum is 43.

The square root of 106665658 is about 10327.9067579060. The cubic root of 106665658 is about 474.2509457107.

The spelling of 106665658 in words is "one hundred six million, six hundred sixty-five thousand, six hundred fifty-eight".