321554552412 has 24 divisors (see below), whose sum is σ = 750645112336. Its totient is φ = 107134685568.

The previous prime is 321554552393. The next prime is 321554552419. The reversal of 321554552412 is 214255455123.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321554552419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6243943 + ... + 6295230.

Almost surely, 2^321554552412 is an apocalyptic number.

It is an amenable number.

321554552412 is an abundant number, since it is smaller than the sum of its proper divisors (429090559924).

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

321554552412 is a wasteful number, since it uses less digits than its factorization.

321554552412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12541317 (or 12541315 counting only the distinct ones).

The product of its digits is 240000, while the sum is 39.

The spelling of 321554552412 in words is "three hundred twenty-one billion, five hundred fifty-four million, five hundred fifty-two thousand, four hundred twelve".