163413333553 has 4 divisors (see below), whose sum is σ = 163415436580. Its totient is φ = 163411230528.

The previous prime is 163413333521. The next prime is 163413333563. The reversal of 163413333553 is 355333314361.

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

It can be written as a sum of positive squares in 2 ways, for example, as 144375681024 + 19037652529 = 379968^2 + 137977^2 .

It is a cyclic number.

It is not a de Polignac number, because 163413333553 - 2⁵ = 163413333521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163413333563) 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, 930300 + ... + 1091917.

It is an arithmetic number, because the mean of its divisors is an integer number (40853859145).

Almost surely, 2^163413333553 is an apocalyptic number.

It is an amenable number.

163413333553 is a deficient number, since it is larger than the sum of its proper divisors (2103027).

163413333553 is an equidigital number, since it uses as much as digits as its factorization.

163413333553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2103026.

The product of its digits is 437400, while the sum is 40.

The spelling of 163413333553 in words is "one hundred sixty-three billion, four hundred thirteen million, three hundred thirty-three thousand, five hundred fifty-three".