12642006653 has 2 divisors, whose sum is σ = 12642006654. Its totient is φ = 12642006652.

The previous prime is 12642006607. The next prime is 12642006661. The reversal of 12642006653 is 35660024621.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8473754809 + 4168251844 = 92053^2 + 64562^2 .

It is a cyclic number.

It is not a de Polignac number, because 12642006653 - 2⁶ = 12642006589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12642026653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6321003326 + 6321003327.

It is an arithmetic number, because the mean of its divisors is an integer number (6321003327).

Almost surely, 2^12642006653 is an apocalyptic number.

It is an amenable number.

12642006653 is a deficient number, since it is larger than the sum of its proper divisors (1).

12642006653 is an equidigital number, since it uses as much as digits as its factorization.

12642006653 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 35.

The spelling of 12642006653 in words is "twelve billion, six hundred forty-two million, six thousand, six hundred fifty-three".