321610147356652 has 96 divisors (see below), whose sum is σ = 743232403468800. Its totient is φ = 117890423454720.

The previous prime is 321610147356551. The next prime is 321610147356697. The reversal of 321610147356652 is 256653741016123.

It is a self number, because there is not a number n which added to its sum of digits gives 321610147356652.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4083474 + ... + 25688422.

It is an arithmetic number, because the mean of its divisors is an integer number (7742004202800).

Almost surely, 2^{321610147356652} 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 321610147356652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371616201734400).

321610147356652 is an abundant number, since it is smaller than the sum of its proper divisors (421622256112148).

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

321610147356652 is a wasteful number, since it uses less digits than its factorization.

321610147356652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21607831 (or 21607829 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 52.

The spelling of 321610147356652 in words is "three hundred twenty-one trillion, six hundred ten billion, one hundred forty-seven million, three hundred fifty-six thousand, six hundred fifty-two".