651116647943 has 2 divisors, whose sum is σ = 651116647944. Its totient is φ = 651116647942.

The previous prime is 651116647933. The next prime is 651116648027. The reversal of 651116647943 is 349746611156.

651116647943 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 is a cyclic number.

It is not a de Polignac number, because 651116647943 - 2⁴ = 651116647927 is a prime.

It is a super-2 number, since 2×651116647943² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (651116647903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325558323971 + 325558323972.

It is an arithmetic number, because the mean of its divisors is an integer number (325558323972).

Almost surely, 2^651116647943 is an apocalyptic number.

651116647943 is a deficient number, since it is larger than the sum of its proper divisors (1).

651116647943 is an equidigital number, since it uses as much as digits as its factorization.

651116647943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3265920, while the sum is 53.

The spelling of 651116647943 in words is "six hundred fifty-one billion, one hundred sixteen million, six hundred forty-seven thousand, nine hundred forty-three".