168858153213 has 4 divisors (see below), whose sum is σ = 225144204288. Its totient is φ = 112572102140.

The previous prime is 168858153193. The next prime is 168858153241. The reversal of 168858153213 is 312351858861.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 168858153213 - 2¹⁷ = 168858022141 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168858153413) 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, 28143025533 + ... + 28143025538.

It is an arithmetic number, because the mean of its divisors is an integer number (56286051072).

Almost surely, 2^168858153213 is an apocalyptic number.

It is an amenable number.

168858153213 is a deficient number, since it is larger than the sum of its proper divisors (56286051075).

168858153213 is an equidigital number, since it uses as much as digits as its factorization.

168858153213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56286051074.

The product of its digits is 1382400, while the sum is 51.

The spelling of 168858153213 in words is "one hundred sixty-eight billion, eight hundred fifty-eight million, one hundred fifty-three thousand, two hundred thirteen".