213321450168 has 48 divisors (see below), whose sum is σ = 577913778000. Its totient is φ = 71086450560.

The previous prime is 213321450127. The next prime is 213321450179. The reversal of 213321450168 is 861054123312.

213321450168 is a `hidden beast` number, since 2 + 13 + 32 + 1 + 450 + 168 = 666.

213321450168 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×213321450168² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181188 + ... + 677843.

It is an arithmetic number, because the mean of its divisors is an integer number (12039870375).

Almost surely, 2^213321450168 is an apocalyptic number.

It is an amenable number.

213321450168 is an abundant number, since it is smaller than the sum of its proper divisors (364592327832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213321450168 is a wasteful number, since it uses less digits than its factorization.

213321450168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862492 (or 862485 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 213321450168 in words is "two hundred thirteen billion, three hundred twenty-one million, four hundred fifty thousand, one hundred sixty-eight".