651063220550 has 24 divisors (see below), whose sum is σ = 1230829687632. Its totient is φ = 256156020000.

The previous prime is 651063220513. The next prime is 651063220559. The reversal of 651063220550 is 55022360156.

It is a self number, because there is not a number n which added to its sum of digits gives 651063220550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651063220559) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 106728626 + ... + 106734725.

It is an arithmetic number, because the mean of its divisors is an integer number (51284570318).

Almost surely, 2^651063220550 is an apocalyptic number.

651063220550 is a deficient number, since it is larger than the sum of its proper divisors (579766467082).

651063220550 is a wasteful number, since it uses less digits than its factorization.

651063220550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213463424 (or 213463419 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

The spelling of 651063220550 in words is "six hundred fifty-one billion, sixty-three million, two hundred twenty thousand, five hundred fifty".