6620266983936 has 80 divisors (see below), whose sum is σ = 17658083203200. Its totient is φ = 2204093288448.

The previous prime is 6620266983871. The next prime is 6620266983991. The reversal of 6620266983936 is 6393896620266.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1326216 + ... + 3872903.

It is an arithmetic number, because the mean of its divisors is an integer number (220726040040).

Almost surely, 2^{6620266983936} is an apocalyptic number.

It is an amenable number.

6620266983936 is an abundant number, since it is smaller than the sum of its proper divisors (11037816219264).

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

6620266983936 is an equidigital number, since it uses as much as digits as its factorization.

6620266983936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5199969 (or 5199953 counting only the distinct ones).

The product of its (nonzero) digits is 181398528, while the sum is 66.

The spelling of 6620266983936 in words is "six trillion, six hundred twenty billion, two hundred sixty-six million, nine hundred eighty-three thousand, nine hundred thirty-six".