651469064059968 has 896 divisors, whose sum is σ = 2220423113932800. Its totient is φ = 167093594357760.

The previous prime is 651469064059949. The next prime is 651469064060011. The reversal of 651469064059968 is 869950460964156.

It is a super-2 number, since 2×651469064059968² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 651469064059893 and 651469064059902.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 32112626721 + ... + 32112647007.

It is an arithmetic number, because the mean of its divisors is an integer number (2478150796800).

Almost surely, 2^{651469064059968} 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 651469064059968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1110211556966400).

651469064059968 is an abundant number, since it is smaller than the sum of its proper divisors (1568954049872832).

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

651469064059968 is a wasteful number, since it uses less digits than its factorization.

651469064059968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20888 (or 20864 counting only the distinct ones).

The product of its (nonzero) digits is 3023308800, while the sum is 78.

The spelling of 651469064059968 in words is "six hundred fifty-one trillion, four hundred sixty-nine billion, sixty-four million, fifty-nine thousand, nine hundred sixty-eight".