321161561410360 has 64 divisors (see below), whose sum is σ = 809611208903520. Its totient is φ = 113629643343360.

The previous prime is 321161561410343. The next prime is 321161561410421. The reversal of 321161561410360 is 63014165161123.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9863668039 + ... + 9863700598.

Almost surely, 2^{321161561410360} is an apocalyptic number.

It is an amenable number.

321161561410360 is an abundant number, since it is smaller than the sum of its proper divisors (488449647493160).

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

321161561410360 is a wasteful number, since it uses less digits than its factorization.

321161561410360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19727368696 (or 19727368692 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 321161561410360 in words is "three hundred twenty-one trillion, one hundred sixty-one billion, five hundred sixty-one million, four hundred ten thousand, three hundred sixty".