6651451008 has 96 divisors (see below), whose sum is σ = 20266199460. Its totient is φ = 2086723584.

The previous prime is 6651450997. The next prime is 6651451019. The reversal of 6651451008 is 8001541566.

It is an interprime number because it is at equal distance from previous prime (6651450997) and next prime (6651451019).

It can be written as a sum of positive squares in 2 ways, for example, as 5983331904 + 668119104 = 77352^2 + 25848^2 .

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 150235 + ... + 189402.

Almost surely, 2^6651451008 is an apocalyptic number.

6651451008 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

6651451008 is an abundant number, since it is smaller than the sum of its proper divisors (13614748452).

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

6651451008 is a wasteful number, since it uses less digits than its factorization.

6651451008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339674 (or 339659 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 6651451008 is about 81556.4283671128. The cubic root of 6651451008 is about 1880.6391187521.

The spelling of 6651451008 in words is "six billion, six hundred fifty-one million, four hundred fifty-one thousand, eight".