320310061552 has 30 divisors (see below), whose sum is σ = 672011462472. Its totient is φ = 147835411776.

The previous prime is 320310061541. The next prime is 320310061583. The reversal of 320310061552 is 255160013023.

It is a self number, because there is not a number n which added to its sum of digits gives 320310061552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59226228 + ... + 59231635.

Almost surely, 2^320310061552 is an apocalyptic number.

It is an amenable number.

320310061552 is an abundant number, since it is smaller than the sum of its proper divisors (351701400920).

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

320310061552 is a wasteful number, since it uses less digits than its factorization.

320310061552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118457897 (or 118457878 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 320310061552 its reverse (255160013023), we get a palindrome (575470074575).

The spelling of 320310061552 in words is "three hundred twenty billion, three hundred ten million, sixty-one thousand, five hundred fifty-two".