1466521721264 has 80 divisors (see below), whose sum is σ = 2973664911360. Its totient is φ = 699314584320.

The previous prime is 1466521721257. The next prime is 1466521721317. The reversal of 1466521721264 is 4621271256641.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 432473009 + ... + 432476399.

It is an arithmetic number, because the mean of its divisors is an integer number (37170811392).

Almost surely, 2^{1466521721264} 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 1466521721264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1486832455680).

1466521721264 is an abundant number, since it is smaller than the sum of its proper divisors (1507143190096).

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

1466521721264 is a wasteful number, since it uses less digits than its factorization.

1466521721264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6538 (or 6532 counting only the distinct ones).

The product of its digits is 967680, while the sum is 47.

The spelling of 1466521721264 in words is "one trillion, four hundred sixty-six billion, five hundred twenty-one million, seven hundred twenty-one thousand, two hundred sixty-four".