10510661 has 4 divisors (see below), whose sum is σ = 12012192. Its totient is φ = 9009132.

The previous prime is 10510651. The next prime is 10510663. The reversal of 10510661 is 16601501.

It is a happy number.

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 10510661 - 2⁶ = 10510597 is a prime.

It is a super-2 number, since 2×10510661² = 220947989313842, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10510663) 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, 750755 + ... + 750768.

It is an arithmetic number, because the mean of its divisors is an integer number (3003048).

Almost surely, 2^10510661 is an apocalyptic number.

It is an amenable number.

10510661 is a deficient number, since it is larger than the sum of its proper divisors (1501531).

10510661 is an equidigital number, since it uses as much as digits as its factorization.

10510661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501530.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 10510661 is about 3242.0149598668. The cubic root of 10510661 is about 219.0500431221.

The spelling of 10510661 in words is "ten million, five hundred ten thousand, six hundred sixty-one".