10667661 has 8 divisors (see below), whose sum is σ = 14239680. Its totient is φ = 7103712.

The previous prime is 10667659. The next prime is 10667663. The reversal of 10667661 is 16676601.

It is an interprime number because it is at equal distance from previous prime (10667659) and next prime (10667663).

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

It is not a de Polignac number, because 10667661 - 2¹ = 10667659 is a prime.

It is a super-2 number, since 2×10667661² = 227597982421842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10667663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2545 + ... + 5273.

It is an arithmetic number, because the mean of its divisors is an integer number (1779960).

Almost surely, 2^10667661 is an apocalyptic number.

It is an amenable number.

10667661 is a deficient number, since it is larger than the sum of its proper divisors (3572019).

10667661 is a wasteful number, since it uses less digits than its factorization.

10667661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4035.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 10667661 is about 3266.1385457448. The cubic root of 10667661 is about 220.1353230811.

The spelling of 10667661 in words is "ten million, six hundred sixty-seven thousand, six hundred sixty-one".