651052522456 has 64 divisors (see below), whose sum is σ = 1429752905280. Its totient is φ = 272100280320.

The previous prime is 651052522447. The next prime is 651052522487. The reversal of 651052522456 is 654225250156.

651052522456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5397946 + ... + 5517238.

It is an arithmetic number, because the mean of its divisors is an integer number (22339889145).

Almost surely, 2^651052522456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 651052522456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (714876452640).

651052522456 is an abundant number, since it is smaller than the sum of its proper divisors (778700382824).

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

651052522456 is a wasteful number, since it uses less digits than its factorization.

651052522456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121724 (or 121720 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 43.

The spelling of 651052522456 in words is "six hundred fifty-one billion, fifty-two million, five hundred twenty-two thousand, four hundred fifty-six".