651260215132063 has 32 divisors (see below), whose sum is σ = 692071975895040. Its totient is φ = 611556341885280.

The previous prime is 651260215132049. The next prime is 651260215132069. The reversal of 651260215132063 is 360231512062156.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-651260215132063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651260215132069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 609839656 + ... + 610906642.

It is an arithmetic number, because the mean of its divisors is an integer number (21627249246720).

Almost surely, 2^{651260215132063} is an apocalyptic number.

651260215132063 is a deficient number, since it is larger than the sum of its proper divisors (40811760762977).

651260215132063 is a wasteful number, since it uses less digits than its factorization.

651260215132063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068427.

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 651260215132063 in words is "six hundred fifty-one trillion, two hundred sixty billion, two hundred fifteen million, one hundred thirty-two thousand, sixty-three".