106660815 has 16 divisors (see below), whose sum is σ = 173062656. Its totient is φ = 56084000.

The previous prime is 106660793. The next prime is 106660817. The reversal of 106660815 is 518066601.

It is not a de Polignac number, because 106660815 - 2⁸ = 106660559 is a prime.

It is a super-2 number, since 2×106660815² = 22753058912928450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106660817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49011 + ... + 51140.

It is an arithmetic number, because the mean of its divisors is an integer number (10816416).

Almost surely, 2^106660815 is an apocalyptic number.

106660815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

106660815 is a deficient number, since it is larger than the sum of its proper divisors (66401841).

106660815 is a wasteful number, since it uses less digits than its factorization.

106660815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100230.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 106660815 is about 10327.6722934067. The cubic root of 106660815 is about 474.2437680426.

The spelling of 106660815 in words is "one hundred six million, six hundred sixty thousand, eight hundred fifteen".