3121202666664 has 96 divisors (see below), whose sum is σ = 8822092032000. Its totient is φ = 995019189120.

The previous prime is 3121202666629. The next prime is 3121202666677. The reversal of 3121202666664 is 4666662021213.

It is a happy number.

3121202666664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11371929 + ... + 11643159.

It is an arithmetic number, because the mean of its divisors is an integer number (91896792000).

Almost surely, 2^{3121202666664} is an apocalyptic number.

It is an amenable number.

3121202666664 is an abundant number, since it is smaller than the sum of its proper divisors (5700889365336).

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

3121202666664 is a wasteful number, since it uses less digits than its factorization.

3121202666664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278215 (or 278208 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

Adding to 3121202666664 its reverse (4666662021213), we get a palindrome (7787864687877).

The spelling of 3121202666664 in words is "three trillion, one hundred twenty-one billion, two hundred two million, six hundred sixty-six thousand, six hundred sixty-four".