106661656 has 24 divisors (see below), whose sum is σ = 202144860. Its totient is φ = 52762400.

The previous prime is 106661609. The next prime is 106661663. The reversal of 106661656 is 656166601.

It is a super-2 number, since 2×106661656² = 22753417721324672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80955 + ... + 82261.

Almost surely, 2^106661656 is an apocalyptic number.

It is an amenable number.

106661656 is a deficient number, since it is larger than the sum of its proper divisors (95483204).

106661656 is a wasteful number, since it uses less digits than its factorization.

106661656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515 (or 1410 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 106661656 is about 10327.7130091807. The cubic root of 106661656 is about 474.2450144796.

It can be divided in two parts, 10 and 6661656, that added together give a palindrome (6661666).

The spelling of 106661656 in words is "one hundred six million, six hundred sixty-one thousand, six hundred fifty-six".