651201272610 has 384 divisors, whose sum is σ = 1947478671360. Its totient is φ = 138540326400.

The previous prime is 651201272549. The next prime is 651201272633. The reversal of 651201272610 is 16272102156.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1072818927 + ... + 1072819533.

It is an arithmetic number, because the mean of its divisors is an integer number (5071559040).

Almost surely, 2^651201272610 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 651201272610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (973739335680).

651201272610 is an abundant number, since it is smaller than the sum of its proper divisors (1296277398750).

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

651201272610 is a wasteful number, since it uses less digits than its factorization.

651201272610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262 (or 1255 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

Adding to 651201272610 its reverse (16272102156), we get a palindrome (667473374766).

The spelling of 651201272610 in words is "six hundred fifty-one billion, two hundred one million, two hundred seventy-two thousand, six hundred ten".