651333366 has 72 divisors (see below), whose sum is σ = 1523161080. Its totient is φ = 206296200.

The previous prime is 651333337. The next prime is 651333367. The reversal of 651333366 is 663333156.

It is a self number, because there is not a number n which added to its sum of digits gives 651333366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651333367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4313391 + ... + 4313541.

It is an arithmetic number, because the mean of its divisors is an integer number (21155015).

Almost surely, 2^651333366 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 651333366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (761580540).

651333366 is an abundant number, since it is smaller than the sum of its proper divisors (871827714).

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

651333366 is a wasteful number, since it uses less digits than its factorization.

651333366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359 (or 179 counting only the distinct ones).

The product of its digits is 87480, while the sum is 36.

The square root of 651333366 is about 25521.2336300579. The cubic root of 651333366 is about 866.8310155447.

The spelling of 651333366 in words is "six hundred fifty-one million, three hundred thirty-three thousand, three hundred sixty-six".