6651015670 has 16 divisors (see below), whose sum is σ = 12892738320. Its totient is φ = 2455759584.

The previous prime is 6651015641. The next prime is 6651015673. The reversal of 6651015670 is 765101566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6651015673) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 25580700 + ... + 25580959.

It is an arithmetic number, because the mean of its divisors is an integer number (805796145).

Almost surely, 2^6651015670 is an apocalyptic number.

6651015670 is a deficient number, since it is larger than the sum of its proper divisors (6241722650).

6651015670 is a wasteful number, since it uses less digits than its factorization.

6651015670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51161679.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 6651015670 is about 81553.7593860639. The cubic root of 6651015670 is about 1880.5980885301.

The spelling of 6651015670 in words is "six billion, six hundred fifty-one million, fifteen thousand, six hundred seventy".