651063140556 has 24 divisors (see below), whose sum is σ = 1544895589440. Its totient is φ = 213342723792.

The previous prime is 651063140543. The next prime is 651063140597. The reversal of 651063140556 is 655041360156.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 459789646 + ... + 459791061.

It is an arithmetic number, because the mean of its divisors is an integer number (64370649560).

Almost surely, 2^651063140556 is an apocalyptic number.

It is an amenable number.

651063140556 is an abundant number, since it is smaller than the sum of its proper divisors (893832448884).

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

651063140556 is a wasteful number, since it uses less digits than its factorization.

651063140556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919580773 (or 919580771 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 651063140556 in words is "six hundred fifty-one billion, sixty-three million, one hundred forty thousand, five hundred fifty-six".