264340213442652 has 96 divisors (see below), whose sum is σ = 655940044569600. Its totient is φ = 82566691551232.

The previous prime is 264340213442531. The next prime is 264340213442653. The reversal of 264340213442652 is 256244312043462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264340213442653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 243384424 + ... + 244468112.

It is an arithmetic number, because the mean of its divisors is an integer number (6832708797600).

Almost surely, 2^{264340213442652} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 264340213442652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327970022284800).

264340213442652 is an abundant number, since it is smaller than the sum of its proper divisors (391599831126948).

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

264340213442652 is a wasteful number, since it uses less digits than its factorization.

264340213442652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088955 (or 1088953 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 48.

The spelling of 264340213442652 in words is "two hundred sixty-four trillion, three hundred forty billion, two hundred thirteen million, four hundred forty-two thousand, six hundred fifty-two".