6620487695040 has 224 divisors, whose sum is σ = 21496440867840. Its totient is φ = 1725553483776.

The previous prime is 6620487694987. The next prime is 6620487695051. The reversal of 6620487695040 is 405967840266.

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 31 ways as a sum of consecutive naturals, for example, 33244404 + ... + 33442956.

Almost surely, 2^{6620487695040} is an apocalyptic number.

6620487695040 is a gapful number since it is divisible by the number (60) 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 6620487695040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10748220433920).

6620487695040 is an abundant number, since it is smaller than the sum of its proper divisors (14875953172800).

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

6620487695040 is a wasteful number, since it uses less digits than its factorization.

6620487695040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199359 (or 199349 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 57.

The spelling of 6620487695040 in words is "six trillion, six hundred twenty billion, four hundred eighty-seven million, six hundred ninety-five thousand, forty".