67561758601 has 2 divisors, whose sum is σ = 67561758602. Its totient is φ = 67561758600.

The previous prime is 67561758599. The next prime is 67561758613. The reversal of 67561758601 is 10685716576.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65701992976 + 1859765625 = 256324^2 + 43125^2 .

It is a cyclic number.

It is not a de Polignac number, because 67561758601 - 2¹ = 67561758599 is a prime.

Together with 67561758599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (67561758001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33780879300 + 33780879301.

It is an arithmetic number, because the mean of its divisors is an integer number (33780879301).

Almost surely, 2^67561758601 is an apocalyptic number.

It is an amenable number.

67561758601 is a deficient number, since it is larger than the sum of its proper divisors (1).

67561758601 is an equidigital number, since it uses as much as digits as its factorization.

67561758601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2116800, while the sum is 52.

The spelling of 67561758601 in words is "sixty-seven billion, five hundred sixty-one million, seven hundred fifty-eight thousand, six hundred one".