651466844160 has 384 divisors, whose sum is σ = 2393346009600. Its totient is φ = 149617704960.

The previous prime is 651466844107. The next prime is 651466844167. The reversal of 651466844160 is 61448664156.

It is a tau number, because it is divible by the number of its divisors (384).

It is a super-2 number, since 2×651466844160² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (651466844167) 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 31 ways as a sum of consecutive naturals, for example, 6369747 + ... + 6471213.

It is an arithmetic number, because the mean of its divisors is an integer number (6232671900).

Almost surely, 2^651466844160 is an apocalyptic number.

651466844160 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 651466844160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1196673004800).

651466844160 is an abundant number, since it is smaller than the sum of its proper divisors (1741879165440).

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

651466844160 is a wasteful number, since it uses less digits than its factorization.

651466844160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101527 (or 101507 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 51.

The spelling of 651466844160 in words is "six hundred fifty-one billion, four hundred sixty-six million, eight hundred forty-four thousand, one hundred sixty".