667059642615 has 32 divisors (see below), whose sum is σ = 1077280680960. Its totient is φ = 352437899904.

The previous prime is 667059642607. The next prime is 667059642631. The reversal of 667059642615 is 516246950766.

It is not a de Polignac number, because 667059642615 - 2³ = 667059642607 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9885922 + ... + 9953168.

It is an arithmetic number, because the mean of its divisors is an integer number (33665021280).

Almost surely, 2^667059642615 is an apocalyptic number.

667059642615 is a deficient number, since it is larger than the sum of its proper divisors (410221038345).

667059642615 is a wasteful number, since it uses less digits than its factorization.

667059642615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73431.

The product of its (nonzero) digits is 16329600, while the sum is 57.

The spelling of 667059642615 in words is "six hundred sixty-seven billion, fifty-nine million, six hundred forty-two thousand, six hundred fifteen".