6651201500 has 48 divisors (see below), whose sum is σ = 14573272896. Its totient is φ = 2651864000.

The previous prime is 6651201493. The next prime is 6651201523. The reversal of 6651201500 is 51021566.

It is a self number, because there is not a number n which added to its sum of digits gives 6651201500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134114 + ... + 176886.

It is an arithmetic number, because the mean of its divisors is an integer number (303609852).

Almost surely, 2^6651201500 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 6651201500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7286636448).

6651201500 is an abundant number, since it is smaller than the sum of its proper divisors (7922071396).

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

6651201500 is a wasteful number, since it uses less digits than its factorization.

6651201500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43103 (or 43091 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 6651201500 is about 81554.8986879390. The cubic root of 6651201500 is about 1880.6156030625.

The spelling of 6651201500 in words is "six billion, six hundred fifty-one million, two hundred one thousand, five hundred".