10664581503 has 4 divisors (see below), whose sum is σ = 14219442008. Its totient is φ = 7109721000.

The previous prime is 10664581471. The next prime is 10664581519. The reversal of 10664581503 is 30518546601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30518546601 = 3 ⋅10172848867.

It is not a de Polignac number, because 10664581503 - 2⁵ = 10664581471 is a prime.

It is a super-2 number, since 2×10664581503² (a number of 21 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 (10664581583) 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, 1777430248 + ... + 1777430253.

It is an arithmetic number, because the mean of its divisors is an integer number (3554860502).

Almost surely, 2^10664581503 is an apocalyptic number.

10664581503 is a deficient number, since it is larger than the sum of its proper divisors (3554860505).

10664581503 is an equidigital number, since it uses as much as digits as its factorization.

10664581503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3554860504.

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 10664581503 in words is "ten billion, six hundred sixty-four million, five hundred eighty-one thousand, five hundred three".