651168480 has 96 divisors (see below), whose sum is σ = 2057245344. Its totient is φ = 173131776.

The previous prime is 651168461. The next prime is 651168499. The reversal of 651168480 is 84861156.

It is an interprime number because it is at equal distance from previous prime (651168461) and next prime (651168499).

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177222 + ... + 180858.

It is an arithmetic number, because the mean of its divisors is an integer number (21429639).

Almost surely, 2^651168480 is an apocalyptic number.

651168480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 651168480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1028622672).

651168480 is an abundant number, since it is smaller than the sum of its proper divisors (1406076864).

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

651168480 is a wasteful number, since it uses less digits than its factorization.

651168480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4028 (or 4020 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 651168480 is about 25518.0030566657. The cubic root of 651168480 is about 866.7578628558.

The spelling of 651168480 in words is "six hundred fifty-one million, one hundred sixty-eight thousand, four hundred eighty".