126562505206403 has 4 divisors (see below), whose sum is σ = 144642863093040. Its totient is φ = 108482147319768.

The previous prime is 126562505206349. The next prime is 126562505206411. The reversal of 126562505206403 is 304602505265621.

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 126562505206403 - 2¹⁴ = 126562505190019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126562505206103) 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, 9040178943308 + ... + 9040178943321.

It is an arithmetic number, because the mean of its divisors is an integer number (36160715773260).

Almost surely, 2^{126562505206403} is an apocalyptic number.

126562505206403 is a deficient number, since it is larger than the sum of its proper divisors (18080357886637).

126562505206403 is an equidigital number, since it uses as much as digits as its factorization.

126562505206403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18080357886636.

The product of its (nonzero) digits is 2592000, while the sum is 47.

The spelling of 126562505206403 in words is "one hundred twenty-six trillion, five hundred sixty-two billion, five hundred five million, two hundred six thousand, four hundred three".