651611464633 has 2 divisors, whose sum is σ = 651611464634. Its totient is φ = 651611464632.

The previous prime is 651611464583. The next prime is 651611464639. The reversal of 651611464633 is 336464116156.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 501677557264 + 149933907369 = 708292^2 + 387213^2 .

It is a cyclic number.

It is not a de Polignac number, because 651611464633 - 2²⁵ = 651577910201 is a prime.

It is not a weakly prime, because it can be changed into another prime (651611464639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325805732316 + 325805732317.

It is an arithmetic number, because the mean of its divisors is an integer number (325805732317).

Almost surely, 2^651611464633 is an apocalyptic number.

It is an amenable number.

651611464633 is a deficient number, since it is larger than the sum of its proper divisors (1).

651611464633 is an equidigital number, since it uses as much as digits as its factorization.

651611464633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 46.

The spelling of 651611464633 in words is "six hundred fifty-one billion, six hundred eleven million, four hundred sixty-four thousand, six hundred thirty-three".