651072217060 has 48 divisors (see below), whose sum is σ = 1377700681392. Its totient is φ = 258444172800.

The previous prime is 651072217049. The next prime is 651072217069. The reversal of 651072217060 is 60712270156.

It can be written as a sum of positive squares in 8 ways, for example, as 127900647424 + 523171569636 = 357632^2 + 723306^2 .

It is not an unprimeable number, because it can be changed into a prime (651072217069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1697950 + ... + 2045770.

It is an arithmetic number, because the mean of its divisors is an integer number (28702097529).

Almost surely, 2^651072217060 is an apocalyptic number.

It is an amenable number.

651072217060 is an abundant number, since it is smaller than the sum of its proper divisors (726628464332).

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

651072217060 is a wasteful number, since it uses less digits than its factorization.

651072217060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348544 (or 348542 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 37.

The spelling of 651072217060 in words is "six hundred fifty-one billion, seventy-two million, two hundred seventeen thousand, sixty".