106666365 has 16 divisors (see below), whose sum is σ = 183794688. Its totient is φ = 52512576.

The previous prime is 106666349. The next prime is 106666367. The reversal of 106666365 is 563666601.

It is not a de Polignac number, because 106666365 - 2⁴ = 106666349 is a prime.

It is a super-2 number, since 2×106666365² = 22755426844626450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106666367) 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, 273309 + ... + 273698.

It is an arithmetic number, because the mean of its divisors is an integer number (11487168).

Almost surely, 2^106666365 is an apocalyptic number.

106666365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

106666365 is a deficient number, since it is larger than the sum of its proper divisors (77128323).

106666365 is a wasteful number, since it uses less digits than its factorization.

106666365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547028.

The product of its (nonzero) digits is 116640, while the sum is 39.

The square root of 106666365 is about 10327.9409855014. The cubic root of 106666365 is about 474.2519935165.

The spelling of 106666365 in words is "one hundred six million, six hundred sixty-six thousand, three hundred sixty-five".