67625766205801 has 2 divisors, whose sum is σ = 67625766205802. Its totient is φ = 67625766205800.

The previous prime is 67625766205799. The next prime is 67625766205807. The reversal of 67625766205801 is 10850266752676.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35770578684201 + 31855187521600 = 5980851^2 + 5644040^2 .

It is a cyclic number.

It is not a de Polignac number, because 67625766205801 - 2¹ = 67625766205799 is a prime.

Together with 67625766205799, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 67625766205801.

It is not a weakly prime, because it can be changed into another prime (67625766205807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33812883102900 + 33812883102901.

It is an arithmetic number, because the mean of its divisors is an integer number (33812883102901).

Almost surely, 2^{67625766205801} is an apocalyptic number.

It is an amenable number.

67625766205801 is a deficient number, since it is larger than the sum of its proper divisors (1).

67625766205801 is an equidigital number, since it uses as much as digits as its factorization.

67625766205801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50803200, while the sum is 61.

The spelling of 67625766205801 in words is "sixty-seven trillion, six hundred twenty-five billion, seven hundred sixty-six million, two hundred five thousand, eight hundred one".