667495536016 has 15 divisors (see below), whose sum is σ = 1293278932843. Its totient is φ = 333746134000.

The previous prime is 667495535977. The next prime is 667495536073. The reversal of 667495536016 is 610635594766.

The square root of 667495536016 is 817004.

It is a perfect power (a square), and thus also a powerful number.

667495536016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3165891 + ... + 3370141.

Almost surely, 2^667495536016 is an apocalyptic number.

667495536016 is the 817004-th square number.

It is an amenable number.

667495536016 is a deficient number, since it is larger than the sum of its proper divisors (625783396827).

667495536016 is an frugal number, since it uses more digits than its factorization.

667495536016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408510 (or 204253 counting only the distinct ones).

The product of its (nonzero) digits is 24494400, while the sum is 58.

The spelling of 667495536016 in words is "six hundred sixty-seven billion, four hundred ninety-five million, five hundred thirty-six thousand, sixteen".