106664331 has 4 divisors (see below), whose sum is σ = 142219112. Its totient is φ = 71109552.

The previous prime is 106664293. The next prime is 106664333. The reversal of 106664331 is 133466601.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 106664331 - 2⁶ = 106664267 is a prime.

It is a super-3 number, since 3×106664331³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106664333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17777386 + ... + 17777391.

It is an arithmetic number, because the mean of its divisors is an integer number (35554778).

Almost surely, 2^106664331 is an apocalyptic number.

106664331 is a deficient number, since it is larger than the sum of its proper divisors (35554781).

106664331 is an equidigital number, since it uses as much as digits as its factorization.

106664331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35554780.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 106664331 is about 10327.8425142912. The cubic root of 106664331 is about 474.2489790246.

The spelling of 106664331 in words is "one hundred six million, six hundred sixty-four thousand, three hundred thirty-one".