10656666050561 has 8 divisors (see below), whose sum is σ = 10671393069504. Its totient is φ = 10641939546960.

The previous prime is 10656666050557. The next prime is 10656666050669. The reversal of 10656666050561 is 16505066665601.

It is a happy number.

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 10656666050561 - 2² = 10656666050557 is a prime.

It is a super-2 number, since 2×10656666050561² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10656666050761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61581620 + ... + 61754426.

It is an arithmetic number, because the mean of its divisors is an integer number (1333924133688).

Almost surely, 2^{10656666050561} is an apocalyptic number.

It is an amenable number.

10656666050561 is a deficient number, since it is larger than the sum of its proper divisors (14727018943).

10656666050561 is an equidigital number, since it uses as much as digits as its factorization.

10656666050561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257671.

The product of its (nonzero) digits is 5832000, while the sum is 53.

The spelling of 10656666050561 in words is "ten trillion, six hundred fifty-six billion, six hundred sixty-six million, fifty thousand, five hundred sixty-one".