64656112601 has 2 divisors, whose sum is σ = 64656112602. Its totient is φ = 64656112600.

The previous prime is 64656112559. The next prime is 64656112639. The reversal of 64656112601 is 10621165646.

It is a happy number.

It is an a-pointer prime, because the next prime (64656112639) can be obtained adding 64656112601 to its sum of digits (38).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63768370576 + 887742025 = 252524^2 + 29795^2 .

It is a cyclic number.

It is not a de Polignac number, because 64656112601 - 2¹⁴ = 64656096217 is a prime.

It is not a weakly prime, because it can be changed into another prime (64656112691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32328056300 + 32328056301.

It is an arithmetic number, because the mean of its divisors is an integer number (32328056301).

Almost surely, 2^64656112601 is an apocalyptic number.

It is an amenable number.

64656112601 is a deficient number, since it is larger than the sum of its proper divisors (1).

64656112601 is an equidigital number, since it uses as much as digits as its factorization.

64656112601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 64656112601 in words is "sixty-four billion, six hundred fifty-six million, one hundred twelve thousand, six hundred one".