6445600700 has 144 divisors (see below), whose sum is σ = 17678701824. Its totient is φ = 1981324800.

The previous prime is 6445600673. The next prime is 6445600723. The reversal of 6445600700 is 70065446.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 556367 + ... + 567833.

Almost surely, 2^6445600700 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 6445600700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8839350912).

6445600700 is an abundant number, since it is smaller than the sum of its proper divisors (11233101124).

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

6445600700 is a wasteful number, since it uses less digits than its factorization.

6445600700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11572 (or 11565 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 6445600700 is about 80284.4985037585. The cubic root of 6445600700 is about 1861.0346788805.

The spelling of 6445600700 in words is "six billion, four hundred forty-five million, six hundred thousand, seven hundred".