6620340666462 has 16 divisors (see below), whose sum is σ = 13278838920192. Its totient is φ = 2200420624280.

The previous prime is 6620340666451. The next prime is 6620340666473. The reversal of 6620340666462 is 2646660430266.

It is an interprime number because it is at equal distance from previous prime (6620340666451) and next prime (6620340666473).

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 7 ways as a sum of consecutive naturals, for example, 1589897214 + ... + 1589901377.

It is an arithmetic number, because the mean of its divisors is an integer number (829927432512).

Almost surely, 2^{6620340666462} is an apocalyptic number.

6620340666462 is an abundant number, since it is smaller than the sum of its proper divisors (6658498253730).

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

6620340666462 is a wasteful number, since it uses less digits than its factorization.

6620340666462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3179798943.

The product of its (nonzero) digits is 8957952, while the sum is 51.

The spelling of 6620340666462 in words is "six trillion, six hundred twenty billion, three hundred forty million, six hundred sixty-six thousand, four hundred sixty-two".