10646261233661 has 8 divisors (see below), whose sum is σ = 10989901910784. Its totient is φ = 10302633862560.

The previous prime is 10646261233637. The next prime is 10646261233691. The reversal of 10646261233661 is 16633216264601.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10646261233661 is a prime.

It is a super-2 number, since 2×10646261233661² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10646261233691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1687640 + ... + 4913313.

It is an arithmetic number, because the mean of its divisors is an integer number (1373737738848).

Almost surely, 2^{10646261233661} is an apocalyptic number.

It is an amenable number.

10646261233661 is a deficient number, since it is larger than the sum of its proper divisors (343640677123).

10646261233661 is an equidigital number, since it uses as much as digits as its factorization.

10646261233661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6653011.

The product of its (nonzero) digits is 1119744, while the sum is 47.

The spelling of 10646261233661 in words is "ten trillion, six hundred forty-six billion, two hundred sixty-one million, two hundred thirty-three thousand, six hundred sixty-one".