126066164503 has 4 divisors (see below), whose sum is σ = 126149598288. Its totient is φ = 125982730720.

The previous prime is 126066164449. The next prime is 126066164513. The reversal of 126066164503 is 305461660621.

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

It is a cyclic number.

It is not a de Polignac number, because 126066164503 - 2²⁵ = 126032610071 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126066164513) 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, 41714626 + ... + 41717647.

It is an arithmetic number, because the mean of its divisors is an integer number (31537399572).

Almost surely, 2^126066164503 is an apocalyptic number.

126066164503 is a deficient number, since it is larger than the sum of its proper divisors (83433785).

126066164503 is an equidigital number, since it uses as much as digits as its factorization.

126066164503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83433784.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 126066164503 in words is "one hundred twenty-six billion, sixty-six million, one hundred sixty-four thousand, five hundred three".