6490644655000 has 160 divisors (see below), whose sum is σ = 16644170410560. Its totient is φ = 2352540240000.

The previous prime is 6490644654959. The next prime is 6490644655013. The reversal of 6490644655000 is 5564460946.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 16692799 + ... + 17077201.

It is an arithmetic number, because the mean of its divisors is an integer number (104026065066).

Almost surely, 2^{6490644655000} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6490644655000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8322085205280).

6490644655000 is an abundant number, since it is smaller than the sum of its proper divisors (10153525755560).

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

6490644655000 is a wasteful number, since it uses less digits than its factorization.

6490644655000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384747 (or 384728 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 49.

The spelling of 6490644655000 in words is "six trillion, four hundred ninety billion, six hundred forty-four million, six hundred fifty-five thousand".