10661150503 has 2 divisors, whose sum is σ = 10661150504. Its totient is φ = 10661150502.

The previous prime is 10661150497. The next prime is 10661150527. The reversal of 10661150503 is 30505116601.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10661150503 - 2⁵ = 10661150471 is a prime.

It is a super-2 number, since 2×10661150503² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10661150303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5330575251 + 5330575252.

It is an arithmetic number, because the mean of its divisors is an integer number (5330575252).

Almost surely, 2^10661150503 is an apocalyptic number.

10661150503 is a deficient number, since it is larger than the sum of its proper divisors (1).

10661150503 is an equidigital number, since it uses as much as digits as its factorization.

10661150503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 28.

The spelling of 10661150503 in words is "ten billion, six hundred sixty-one million, one hundred fifty thousand, five hundred three".