10556660102403 has 4 divisors (see below), whose sum is σ = 14075546803208. Its totient is φ = 7037773401600.

The previous prime is 10556660102393. The next prime is 10556660102407. The reversal of 10556660102403 is 30420106665501.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 10556660102403 - 2²⁹ = 10556123231491 is a prime.

It is a super-2 number, since 2×10556660102403² (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 (10556660102407) 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, 1759443350398 + ... + 1759443350403.

It is an arithmetic number, because the mean of its divisors is an integer number (3518886700802).

Almost surely, 2^{10556660102403} is an apocalyptic number.

10556660102403 is a deficient number, since it is larger than the sum of its proper divisors (3518886700805).

10556660102403 is an equidigital number, since it uses as much as digits as its factorization.

10556660102403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3518886700804.

The product of its (nonzero) digits is 129600, while the sum is 39.

Adding to 10556660102403 its reverse (30420106665501), we get a palindrome (40976766767904).

The spelling of 10556660102403 in words is "ten trillion, five hundred fifty-six billion, six hundred sixty million, one hundred two thousand, four hundred three".