651544536046056 has 64 divisors (see below), whose sum is σ = 1645015891625280. Its totient is φ = 215027642956800.

The previous prime is 651544536046051. The next prime is 651544536046081. The reversal of 651544536046056 is 650640635445156.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (651544536046051) 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, 146391415 + ... + 150776441.

It is an arithmetic number, because the mean of its divisors is an integer number (25703373306645).

Almost surely, 2^{651544536046056} is an apocalyptic number.

It is an amenable number.

651544536046056 is an abundant number, since it is smaller than the sum of its proper divisors (993471355579224).

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

651544536046056 is a wasteful number, since it uses less digits than its factorization.

651544536046056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4446434 (or 4446430 counting only the distinct ones).

The product of its (nonzero) digits is 155520000, while the sum is 60.

The spelling of 651544536046056 in words is "six hundred fifty-one trillion, five hundred forty-four billion, five hundred thirty-six million, forty-six thousand, fifty-six".