10641350641 has 4 divisors (see below), whose sum is σ = 10641774052. Its totient is φ = 10640927232.

The previous prime is 10641350579. The next prime is 10641350669. The reversal of 10641350641 is 14605314601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14605314601 = 17 ⋅859136153.

It can be written as a sum of positive squares in 2 ways, for example, as 1095279025 + 9546071616 = 33095^2 + 97704^2 .

It is a cyclic number.

It is not a de Polignac number, because 10641350641 - 2¹¹ = 10641348593 is a prime.

It is a super-2 number, since 2×10641350641² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10641300641) 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, 171456 + ... + 225121.

It is an arithmetic number, because the mean of its divisors is an integer number (2660443513).

Almost surely, 2^10641350641 is an apocalyptic number.

It is an amenable number.

10641350641 is a deficient number, since it is larger than the sum of its proper divisors (423411).

10641350641 is an equidigital number, since it uses as much as digits as its factorization.

10641350641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423410.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 10641350641 in words is "ten billion, six hundred forty-one million, three hundred fifty thousand, six hundred forty-one".