6605207510123 has 2 divisors, whose sum is σ = 6605207510124. Its totient is φ = 6605207510122.

The previous prime is 6605207510081. The next prime is 6605207510149. The reversal of 6605207510123 is 3210157025066.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6605207510123 - 2⁸ = 6605207509867 is a prime.

It is a super-2 number, since 2×6605207510123² (a number of 26 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (6605207516123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3302603755061 + 3302603755062.

It is an arithmetic number, because the mean of its divisors is an integer number (3302603755062).

Almost surely, 2^{6605207510123} is an apocalyptic number.

6605207510123 is a deficient number, since it is larger than the sum of its proper divisors (1).

6605207510123 is an equidigital number, since it uses as much as digits as its factorization.

6605207510123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 6605207510123 in words is "six trillion, six hundred five billion, two hundred seven million, five hundred ten thousand, one hundred twenty-three".