64155576713 has 2 divisors, whose sum is σ = 64155576714. Its totient is φ = 64155576712.

The previous prime is 64155576679. The next prime is 64155576761. The reversal of 64155576713 is 31767555146.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63967008889 + 188567824 = 252917^2 + 13732^2 .

It is a cyclic number.

It is not a de Polignac number, because 64155576713 - 2⁶ = 64155576649 is a prime.

It is not a weakly prime, because it can be changed into another prime (64155576773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32077788356 + 32077788357.

It is an arithmetic number, because the mean of its divisors is an integer number (32077788357).

Almost surely, 2^64155576713 is an apocalyptic number.

It is an amenable number.

64155576713 is a deficient number, since it is larger than the sum of its proper divisors (1).

64155576713 is an equidigital number, since it uses as much as digits as its factorization.

64155576713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2646000, while the sum is 50.

The spelling of 64155576713 in words is "sixty-four billion, one hundred fifty-five million, five hundred seventy-six thousand, seven hundred thirteen".