163210026231653 has 4 divisors (see below), whose sum is σ = 166289460688908. Its totient is φ = 160130591774400.

The previous prime is 163210026231619. The next prime is 163210026231701. The reversal of 163210026231653 is 356132620012361.

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 131105087712769 + 32104938518884 = 11450113^2 + 5666122^2 .

It is a cyclic number.

It is not a de Polignac number, because 163210026231653 - 2⁶ = 163210026231589 is a prime.

It is a super-2 number, since 2×163210026231653² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 163210026231653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163210026231853) 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, 1539717228548 + ... + 1539717228653.

It is an arithmetic number, because the mean of its divisors is an integer number (41572365172227).

Almost surely, 2^{163210026231653} is an apocalyptic number.

It is an amenable number.

163210026231653 is a deficient number, since it is larger than the sum of its proper divisors (3079434457255).

163210026231653 is an equidigital number, since it uses as much as digits as its factorization.

163210026231653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3079434457254.

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 163210026231653 in words is "one hundred sixty-three trillion, two hundred ten billion, twenty-six million, two hundred thirty-one thousand, six hundred fifty-three".