6621374671296 has 448 divisors, whose sum is σ = 22728829685760. Its totient is φ = 1651360112640.

The previous prime is 6621374671259. The next prime is 6621374671321. The reversal of 6621374671296 is 6921764731266.

It is a tau number, because it is divible by the number of its divisors (448).

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 37418740 + ... + 37595276.

Almost surely, 2^{6621374671296} is an apocalyptic number.

6621374671296 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6621374671296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11364414842880).

6621374671296 is an abundant number, since it is smaller than the sum of its proper divisors (16107455014464).

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

6621374671296 is a wasteful number, since it uses less digits than its factorization.

6621374671296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176672 (or 176662 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 60.

The spelling of 6621374671296 in words is "six trillion, six hundred twenty-one billion, three hundred seventy-four million, six hundred seventy-one thousand, two hundred ninety-six".