651849734160 has 480 divisors, whose sum is σ = 2321716400640. Its totient is φ = 163628838912.

The previous prime is 651849734077. The next prime is 651849734167. The reversal of 651849734160 is 61437948156.

651849734160 is a `hidden beast` number, since 6 + 51 + 8 + 497 + 3 + 41 + 60 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 651849734097 and 651849734106.

It is not an unprimeable number, because it can be changed into a prime (651849734167) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 287537347 + ... + 287539613.

It is an arithmetic number, because the mean of its divisors is an integer number (4836909168).

Almost surely, 2^651849734160 is an apocalyptic number.

651849734160 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 651849734160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1160858200320).

651849734160 is an abundant number, since it is smaller than the sum of its proper divisors (1669866666480).

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

651849734160 is a wasteful number, since it uses less digits than its factorization.

651849734160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2655 (or 2646 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 651849734160 in words is "six hundred fifty-one billion, eight hundred forty-nine million, seven hundred thirty-four thousand, one hundred sixty".