651504455054653 has 2 divisors, whose sum is σ = 651504455054654. Its totient is φ = 651504455054652.

The previous prime is 651504455054641. The next prime is 651504455054671. The reversal of 651504455054653 is 356450554405156.

It is a happy number.

651504455054653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 651003641241529 + 500813813124 = 25514773^2 + 707682^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-651504455054653 is a prime.

It is a super-2 number, since 2×651504455054653² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (651504455054683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325752227527326 + 325752227527327.

It is an arithmetic number, because the mean of its divisors is an integer number (325752227527327).

Almost surely, 2^{651504455054653} is an apocalyptic number.

It is an amenable number.

651504455054653 is a deficient number, since it is larger than the sum of its proper divisors (1).

651504455054653 is an equidigital number, since it uses as much as digits as its factorization.

651504455054653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108000000, while the sum is 58.

The spelling of 651504455054653 in words is "six hundred fifty-one trillion, five hundred four billion, four hundred fifty-five million, fifty-four thousand, six hundred fifty-three".