106667656 has 16 divisors (see below), whose sum is σ = 211766940. Its totient is φ = 50196480.

The previous prime is 106667651. The next prime is 106667677. The reversal of 106667656 is 656766601.

It can be written as a sum of positive squares in 2 ways, for example, as 105390756 + 1276900 = 10266^2 + 1130^2 .

It is a super-2 number, since 2×106667656² = 22755977673068672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106667651) 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, 392025 + ... + 392296.

Almost surely, 2^106667656 is an apocalyptic number.

It is an amenable number.

106667656 is a deficient number, since it is larger than the sum of its proper divisors (105099284).

106667656 is a wasteful number, since it uses less digits than its factorization.

106667656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784344 (or 784340 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 106667656 is about 10328.0034856694. The cubic root of 106667656 is about 474.2539068246.

It can be divided in two parts, 10 and 6667656, that added together give a palindrome (6667666).

The spelling of 106667656 in words is "one hundred six million, six hundred sixty-seven thousand, six hundred fifty-six".