660460036300123 has 2 divisors, whose sum is σ = 660460036300124. Its totient is φ = 660460036300122.

The previous prime is 660460036300091. The next prime is 660460036300157. The reversal of 660460036300123 is 321003630064066.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 660460036300123 - 2⁵ = 660460036300091 is a prime.

It is not a weakly prime, because it can be changed into another prime (660460036000123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330230018150061 + 330230018150062.

It is an arithmetic number, because the mean of its divisors is an integer number (330230018150062).

Almost surely, 2^{660460036300123} is an apocalyptic number.

660460036300123 is a deficient number, since it is larger than the sum of its proper divisors (1).

660460036300123 is an equidigital number, since it uses as much as digits as its factorization.

660460036300123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 40.

Adding to 660460036300123 its reverse (321003630064066), we get a palindrome (981463666364189).

The spelling of 660460036300123 in words is "six hundred sixty trillion, four hundred sixty billion, thirty-six million, three hundred thousand, one hundred twenty-three".