667016556039 has 6 divisors (see below), whose sum is σ = 963468358736. Its totient is φ = 444677704020.

The previous prime is 667016555977. The next prime is 667016556043. The reversal of 667016556039 is 930655610766.

667016556039 is a `hidden beast` number, since 6 + 6 + 70 + 1 + 6 + 5 + 560 + 3 + 9 = 666.

667016556039 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 667016556039 - 2⁷ = 667016555911 is a prime.

It is a super-2 number, since 2×667016556039² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667016556139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37056475327 + ... + 37056475344.

Almost surely, 2^667016556039 is an apocalyptic number.

667016556039 is a deficient number, since it is larger than the sum of its proper divisors (296451802697).

667016556039 is a wasteful number, since it uses less digits than its factorization.

667016556039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74112950677 (or 74112950674 counting only the distinct ones).

The product of its (nonzero) digits is 6123600, while the sum is 54.

The spelling of 667016556039 in words is "six hundred sixty-seven billion, sixteen million, five hundred fifty-six thousand, thirty-nine".