10365661 has 8 divisors (see below), whose sum is σ = 10907064. Its totient is φ = 9838080.

The previous prime is 10365653. The next prime is 10365671. The reversal of 10365661 is 16656301.

It can be written as a sum of positive squares in 4 ways, for example, as 164025 + 10201636 = 405^2 + 3194^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 10365661 - 2³ = 10365653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10365671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1900 + ... + 4933.

It is an arithmetic number, because the mean of its divisors is an integer number (1363383).

Almost surely, 2^10365661 is an apocalyptic number.

It is an amenable number.

10365661 is a deficient number, since it is larger than the sum of its proper divisors (541403).

10365661 is an equidigital number, since it uses as much as digits as its factorization.

10365661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6911.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 10365661 is about 3219.5746613489. The cubic root of 10365661 is about 218.0380723562.

It can be divided in two parts, 10365 and 661, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 10365661 in words is "ten million, three hundred sixty-five thousand, six hundred sixty-one".