651561066060 has 48 divisors (see below), whose sum is σ = 1858793088096. Its totient is φ = 170471322112.

The previous prime is 651561066047. The next prime is 651561066067. The reversal of 651561066060 is 60660165156.

It is not an unprimeable number, because it can be changed into a prime (651561066067) 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 15 ways as a sum of consecutive naturals, for example, 102443529 + ... + 102449888.

It is an arithmetic number, because the mean of its divisors is an integer number (38724856002).

Almost surely, 2^651561066060 is an apocalyptic number.

651561066060 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

651561066060 is an abundant number, since it is smaller than the sum of its proper divisors (1207232022036).

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

651561066060 is a wasteful number, since it uses less digits than its factorization.

651561066060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204893482 (or 204893480 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 651561066060 in words is "six hundred fifty-one billion, five hundred sixty-one million, sixty-six thousand, sixty".