667515714043 has 2 divisors, whose sum is σ = 667515714044. Its totient is φ = 667515714042.

The previous prime is 667515714031. The next prime is 667515714049. The reversal of 667515714043 is 340417515766.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 667515714043 - 2⁵ = 667515714011 is a prime.

It is a super-2 number, since 2×667515714043² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (667515714049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333757857021 + 333757857022.

It is an arithmetic number, because the mean of its divisors is an integer number (333757857022).

Almost surely, 2^667515714043 is an apocalyptic number.

667515714043 is a deficient number, since it is larger than the sum of its proper divisors (1).

667515714043 is an equidigital number, since it uses as much as digits as its factorization.

667515714043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2116800, while the sum is 49.

The spelling of 667515714043 in words is "six hundred sixty-seven billion, five hundred fifteen million, seven hundred fourteen thousand, forty-three".