10656065551501 has 4 divisors (see below), whose sum is σ = 10656075467452. Its totient is φ = 10656055635552.

The previous prime is 10656065551459. The next prime is 10656065551559. The reversal of 10656065551501 is 10515556065601.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 8238771346276 + 2417294205225 = 2870326^2 + 1554765^2 .

It is a cyclic number.

It is not a de Polignac number, because 10656065551501 - 2²¹ = 10656063454349 is a prime.

It is a super-2 number, since 2×10656065551501² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10656065651501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3118536 + ... + 5571121.

It is an arithmetic number, because the mean of its divisors is an integer number (2664018866863).

Almost surely, 2^{10656065551501} is an apocalyptic number.

It is an amenable number.

10656065551501 is a deficient number, since it is larger than the sum of its proper divisors (9915951).

10656065551501 is an equidigital number, since it uses as much as digits as its factorization.

10656065551501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9915950.

The product of its (nonzero) digits is 675000, while the sum is 46.

The spelling of 10656065551501 in words is "ten trillion, six hundred fifty-six billion, sixty-five million, five hundred fifty-one thousand, five hundred one".