64156818113 has 2 divisors, whose sum is σ = 64156818114. Its totient is φ = 64156818112.

The previous prime is 64156818107. The next prime is 64156818119. The reversal of 64156818113 is 31181865146.

It is a balanced prime because it is at equal distance from previous prime (64156818107) and next prime (64156818119).

It can be written as a sum of positive squares in only one way, i.e., 61952703409 + 2204114704 = 248903^2 + 46948^2 .

It is a cyclic number.

It is not a de Polignac number, because 64156818113 - 2¹² = 64156814017 is a prime.

It is not a weakly prime, because it can be changed into another prime (64156818119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32078409056 + 32078409057.

It is an arithmetic number, because the mean of its divisors is an integer number (32078409057).

Almost surely, 2^64156818113 is an apocalyptic number.

It is an amenable number.

64156818113 is a deficient number, since it is larger than the sum of its proper divisors (1).

64156818113 is an equidigital number, since it uses as much as digits as its factorization.

64156818113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 44.

The spelling of 64156818113 in words is "sixty-four billion, one hundred fifty-six million, eight hundred eighteen thousand, one hundred thirteen".