6651870160 has 80 divisors (see below), whose sum is σ = 17635027536. Its totient is φ = 2311593984.

The previous prime is 6651870133. The next prime is 6651870179. The reversal of 6651870160 is 610781566.

It can be written as a sum of positive squares in 8 ways, for example, as 227527056 + 6424343104 = 15084^2 + 80152^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (40).

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 15 ways as a sum of consecutive naturals, for example, 170439 + ... + 205798.

Almost surely, 2^6651870160 is an apocalyptic number.

It is an amenable number.

6651870160 is an abundant number, since it is smaller than the sum of its proper divisors (10983157376).

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

6651870160 is a wasteful number, since it uses less digits than its factorization.

6651870160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376280 (or 376274 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 6651870160 is about 81558.9980320994. The cubic root of 6651870160 is about 1880.6786217663.

The spelling of 6651870160 in words is "six billion, six hundred fifty-one million, eight hundred seventy thousand, one hundred sixty".