162556253403 has 4 divisors (see below), whose sum is σ = 216741671208. Its totient is φ = 108370835600.

The previous prime is 162556253389. The next prime is 162556253437. The reversal of 162556253403 is 304352655261.

It is a happy number.

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 162556253403 - 2⁵ = 162556253371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (162556253443) 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, 27092708898 + ... + 27092708903.

It is an arithmetic number, because the mean of its divisors is an integer number (54185417802).

Almost surely, 2^162556253403 is an apocalyptic number.

162556253403 is a deficient number, since it is larger than the sum of its proper divisors (54185417805).

162556253403 is an equidigital number, since it uses as much as digits as its factorization.

162556253403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54185417804.

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 162556253403 in words is "one hundred sixty-two billion, five hundred fifty-six million, two hundred fifty-three thousand, four hundred three".