320335250552 has 8 divisors (see below), whose sum is σ = 600628594800. Its totient is φ = 160167625272.

The previous prime is 320335250537. The next prime is 320335250591. The reversal of 320335250552 is 255052533023.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×320335250552² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20020953152 + ... + 20020953167.

It is an arithmetic number, because the mean of its divisors is an integer number (75078574350).

Almost surely, 2^320335250552 is an apocalyptic number.

It is an amenable number.

320335250552 is a deficient number, since it is larger than the sum of its proper divisors (280293344248).

320335250552 is a wasteful number, since it uses less digits than its factorization.

320335250552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40041906325 (or 40041906321 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 35.

Adding to 320335250552 its reverse (255052533023), we get a palindrome (575387783575).

The spelling of 320335250552 in words is "three hundred twenty billion, three hundred thirty-five million, two hundred fifty thousand, five hundred fifty-two".