18660950023 has 2 divisors, whose sum is σ = 18660950024. Its totient is φ = 18660950022.

The previous prime is 18660950017. The next prime is 18660950027. The reversal of 18660950023 is 32005906681.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18660950023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18660950027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9330475011 + 9330475012.

It is an arithmetic number, because the mean of its divisors is an integer number (9330475012).

Almost surely, 2^18660950023 is an apocalyptic number.

18660950023 is a deficient number, since it is larger than the sum of its proper divisors (1).

18660950023 is an equidigital number, since it uses as much as digits as its factorization.

18660950023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 40.

It can be divided in two parts, 186609 and 50023, that added together give a palindrome (236632).

The spelling of 18660950023 in words is "eighteen billion, six hundred sixty million, nine hundred fifty thousand, twenty-three".