321400405166325 has 24 divisors (see below), whose sum is σ = 531386910998496. Its totient is φ = 171411966264000.

The previous prime is 321400405166303. The next prime is 321400405166329. The reversal of 321400405166325 is 523661504004123.

It is not a de Polignac number, because 321400405166325 - 2¹⁷ = 321400405035253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321400405166329) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11592366 + ... + 27878015.

It is an arithmetic number, because the mean of its divisors is an integer number (22141121291604).

Almost surely, 2^{321400405166325} is an apocalyptic number.

It is an amenable number.

321400405166325 is a deficient number, since it is larger than the sum of its proper divisors (209986505832171).

321400405166325 is a wasteful number, since it uses less digits than its factorization.

321400405166325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39578965 (or 39578960 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 321400405166325 in words is "three hundred twenty-one trillion, four hundred billion, four hundred five million, one hundred sixty-six thousand, three hundred twenty-five".