651535213056 has 720 divisors, whose sum is σ = 2287348975296. Its totient is φ = 160452182016.

The previous prime is 651535213051. The next prime is 651535213111. The reversal of 651535213056 is 650312535156.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 651535212999 and 651535213017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651535213051) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5130198465 + ... + 5130198591.

Almost surely, 2^651535213056 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 651535213056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1143674487648).

651535213056 is an abundant number, since it is smaller than the sum of its proper divisors (1635813762240).

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

651535213056 is a wasteful number, since it uses less digits than its factorization.

651535213056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 405000, while the sum is 42.

The spelling of 651535213056 in words is "six hundred fifty-one billion, five hundred thirty-five million, two hundred thirteen thousand, fifty-six".