651684311213128 has 16 divisors (see below), whose sum is σ = 1226416969445760. Its totient is φ = 324639786027600.

The previous prime is 651684311213053. The next prime is 651684311213171. The reversal of 651684311213128 is 821312113486156.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 150296195068 + ... + 150296199403.

It is an arithmetic number, because the mean of its divisors is an integer number (76651060590360).

Almost surely, 2^{651684311213128} is an apocalyptic number.

It is an amenable number.

651684311213128 is a deficient number, since it is larger than the sum of its proper divisors (574732658232632).

651684311213128 is a wasteful number, since it uses less digits than its factorization.

651684311213128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300592394748 (or 300592394744 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 52.

The spelling of 651684311213128 in words is "six hundred fifty-one trillion, six hundred eighty-four billion, three hundred eleven million, two hundred thirteen thousand, one hundred twenty-eight".