264421858168 has 32 divisors (see below), whose sum is σ = 534125692800. Its totient is φ = 121995842688.

The previous prime is 264421858147. The next prime is 264421858171. The reversal of 264421858168 is 861858124462.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184771 + ... + 750322.

It is an arithmetic number, because the mean of its divisors is an integer number (16691427900).

Almost surely, 2^264421858168 is an apocalyptic number.

It is an amenable number.

264421858168 is an abundant number, since it is smaller than the sum of its proper divisors (269703834632).

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

264421858168 is a wasteful number, since it uses less digits than its factorization.

264421858168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937831 (or 937827 counting only the distinct ones).

The product of its digits is 5898240, while the sum is 55.

The spelling of 264421858168 in words is "two hundred sixty-four billion, four hundred twenty-one million, eight hundred fifty-eight thousand, one hundred sixty-eight".