106666455 has 16 divisors (see below), whose sum is σ = 195047424. Its totient is φ = 48761760.

The previous prime is 106666451. The next prime is 106666459. The reversal of 106666455 is 554666601.

It is an interprime number because it is at equal distance from previous prime (106666451) and next prime (106666459).

It is not a de Polignac number, because 106666455 - 2² = 106666451 is a prime.

It is a super-2 number, since 2×106666455² = 22755465244534050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106666451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 507831 + ... + 508040.

It is an arithmetic number, because the mean of its divisors is an integer number (12190464).

Almost surely, 2^106666455 is an apocalyptic number.

106666455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

106666455 is a deficient number, since it is larger than the sum of its proper divisors (88380969).

106666455 is a wasteful number, since it uses less digits than its factorization.

106666455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015886.

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 106666455 is about 10327.9453426129. The cubic root of 106666455 is about 474.2521269002.

The spelling of 106666455 in words is "one hundred six million, six hundred sixty-six thousand, four hundred fifty-five".