10606661 has 4 divisors (see below), whose sum is σ = 11422572. Its totient is φ = 9790752.

The previous prime is 10606639. The next prime is 10606709. The reversal of 10606661 is 16660601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16660601 = 2473 ⋅6737.

It can be written as a sum of positive squares in 2 ways, for example, as 6630625 + 3976036 = 2575^2 + 1994^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10606661 is a prime.

It is a super-2 number, since 2×10606661² = 225002515137842, 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 10606661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10606601) 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, 407936 + ... + 407961.

It is an arithmetic number, because the mean of its divisors is an integer number (2855643).

Almost surely, 2^10606661 is an apocalyptic number.

It is an amenable number.

10606661 is a deficient number, since it is larger than the sum of its proper divisors (815911).

10606661 is an equidigital number, since it uses as much as digits as its factorization.

10606661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815910.

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

The square root of 10606661 is about 3256.7869135085. The cubic root of 10606661 is about 219.7149269089.

The spelling of 10606661 in words is "ten million, six hundred six thousand, six hundred sixty-one".