106600661 has 4 divisors (see below), whose sum is σ = 110039424. Its totient is φ = 103161900.

The previous prime is 106600651. The next prime is 106600667. The reversal of 106600661 is 166006601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 106600661 - 2⁶ = 106600597 is a prime.

It is a super-2 number, since 2×106600661² = 22727401851273842, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 106600661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106600667) 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, 1719335 + ... + 1719396.

It is an arithmetic number, because the mean of its divisors is an integer number (27509856).

Almost surely, 2^106600661 is an apocalyptic number.

It is an amenable number.

106600661 is a deficient number, since it is larger than the sum of its proper divisors (3438763).

106600661 is an equidigital number, since it uses as much as digits as its factorization.

106600661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3438762.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 106600661 is about 10324.7596097924. The cubic root of 106600661 is about 474.1545974499.

The spelling of 106600661 in words is "one hundred six million, six hundred thousand, six hundred sixty-one".