168456213153 has 24 divisors (see below), whose sum is σ = 257799414600. Its totient is φ = 105632169984.

The previous prime is 168456213151. The next prime is 168456213161. The reversal of 168456213153 is 351312654861.

168456213153 is a `hidden beast` number, since 1 + 6 + 8 + 4 + 5 + 621 + 3 + 15 + 3 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 55914750369 + 112541462784 = 236463^2 + 335472^2 .

It is not a de Polignac number, because 168456213153 - 2¹ = 168456213151 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168456213099 and 168456213108.

It is not an unprimeable number, because it can be changed into a prime (168456213151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95968 + ... + 588321.

It is an arithmetic number, because the mean of its divisors is an integer number (10741642275).

Almost surely, 2^168456213153 is an apocalyptic number.

It is an amenable number.

168456213153 is a deficient number, since it is larger than the sum of its proper divisors (89343201447).

168456213153 is a wasteful number, since it uses less digits than its factorization.

168456213153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685921 (or 685918 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The spelling of 168456213153 in words is "one hundred sixty-eight billion, four hundred fifty-six million, two hundred thirteen thousand, one hundred fifty-three".