10010661 has 4 divisors (see below), whose sum is σ = 13347552. Its totient is φ = 6673772.

The previous prime is 10010657. The next prime is 10010687. The reversal of 10010661 is 16601001.

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 10010661 - 2² = 10010657 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10010661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10010761) 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, 1668441 + ... + 1668446.

It is an arithmetic number, because the mean of its divisors is an integer number (3336888).

Almost surely, 2^10010661 is an apocalyptic number.

It is an amenable number.

10010661 is a deficient number, since it is larger than the sum of its proper divisors (3336891).

10010661 is an equidigital number, since it uses as much as digits as its factorization.

10010661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3336890.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 10010661 is about 3163.9628632460. The cubic root of 10010661 is about 215.5200032393.

Adding to 10010661 its reverse (16601001), we get a palindrome (26611662).

The spelling of 10010661 in words is "ten million, ten thousand, six hundred sixty-one".