6621330313044 has 72 divisors (see below), whose sum is σ = 16805390565600. Its totient is φ = 2198126280000.

The previous prime is 6621330313007. The next prime is 6621330313121. The reversal of 6621330313044 is 4403130331266.

6621330313044 is a `hidden beast` number, since 6 + 6 + 2 + 1 + 330 + 313 + 0 + 4 + 4 = 666.

It is a super-2 number, since 2×6621330313044² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 136862179 + ... + 136910549.

It is an arithmetic number, because the mean of its divisors is an integer number (233408202300).

Almost surely, 2^{6621330313044} is an apocalyptic number.

It is an amenable number.

6621330313044 is an abundant number, since it is smaller than the sum of its proper divisors (10184060252556).

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

6621330313044 is a wasteful number, since it uses less digits than its factorization.

6621330313044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63781 (or 63776 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 36.

The spelling of 6621330313044 in words is "six trillion, six hundred twenty-one billion, three hundred thirty million, three hundred thirteen thousand, forty-four".