106656905 has 8 divisors (see below), whose sum is σ = 128056200. Its totient is φ = 85280256.

The previous prime is 106656889. The next prime is 106656917. The reversal of 106656905 is 509656601.

It can be written as a sum of positive squares in 4 ways, for example, as 1471369 + 105185536 = 1213^2 + 10256^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 106656905 - 2⁴ = 106656889 is a prime.

It is a super-2 number, since 2×106656905² = 22751390768358050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7481 + ... + 16409.

It is an arithmetic number, because the mean of its divisors is an integer number (16007025).

Almost surely, 2^106656905 is an apocalyptic number.

It is an amenable number.

106656905 is a deficient number, since it is larger than the sum of its proper divisors (21399295).

106656905 is an equidigital number, since it uses as much as digits as its factorization.

106656905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11323.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 106656905 is about 10327.4829944183. The cubic root of 106656905 is about 474.2379729878.

The spelling of 106656905 in words is "one hundred six million, six hundred fifty-six thousand, nine hundred five".