532401664240 has 20 divisors (see below), whose sum is σ = 1237833869544. Its totient is φ = 212960665664.

The previous prime is 532401664229. The next prime is 532401664283. The reversal of 532401664240 is 42466104235.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 532401664240.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3327510322 + ... + 3327510481.

Almost surely, 2^532401664240 is an apocalyptic number.

It is an amenable number.

532401664240 is an abundant number, since it is smaller than the sum of its proper divisors (705432205304).

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

532401664240 is a wasteful number, since it uses less digits than its factorization.

532401664240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6655020816 (or 6655020810 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 532401664240 its reverse (42466104235), we get a palindrome (574867768475).

The spelling of 532401664240 in words is "five hundred thirty-two billion, four hundred one million, six hundred sixty-four thousand, two hundred forty".