667257473023 has 2 divisors, whose sum is σ = 667257473024. Its totient is φ = 667257473022.

The previous prime is 667257472963. The next prime is 667257473059. The reversal of 667257473023 is 320374752766.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-667257473023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (667257473723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333628736511 + 333628736512.

It is an arithmetic number, because the mean of its divisors is an integer number (333628736512).

Almost surely, 2^667257473023 is an apocalyptic number.

667257473023 is a deficient number, since it is larger than the sum of its proper divisors (1).

667257473023 is an equidigital number, since it uses as much as digits as its factorization.

667257473023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8890560, while the sum is 52.

The spelling of 667257473023 in words is "six hundred sixty-seven billion, two hundred fifty-seven million, four hundred seventy-three thousand, twenty-three".