67641553407107 has 2 divisors, whose sum is σ = 67641553407108. Its totient is φ = 67641553407106.

The previous prime is 67641553407101. The next prime is 67641553407119. The reversal of 67641553407107 is 70170435514676.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 67641553407107 - 2²² = 67641549212803 is a prime.

It is not a weakly prime, because it can be changed into another prime (67641553407101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33820776703553 + 33820776703554.

It is an arithmetic number, because the mean of its divisors is an integer number (33820776703554).

Almost surely, 2^{67641553407107} is an apocalyptic number.

67641553407107 is a deficient number, since it is larger than the sum of its proper divisors (1).

67641553407107 is an equidigital number, since it uses as much as digits as its factorization.

67641553407107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14817600, while the sum is 56.

The spelling of 67641553407107 in words is "sixty-seven trillion, six hundred forty-one billion, five hundred fifty-three million, four hundred seven thousand, one hundred seven".