667487387215 has 8 divisors (see below), whose sum is σ = 873801670608. Its totient is φ = 485445372480.

The previous prime is 667487387197. The next prime is 667487387233. The reversal of 667487387215 is 512783784766.

It is an interprime number because it is at equal distance from previous prime (667487387197) and next prime (667487387233).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 667487387215 - 2⁵ = 667487387183 is a prime.

It is a super-2 number, since 2×667487387215² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6068067102 + ... + 6068067211.

It is an arithmetic number, because the mean of its divisors is an integer number (109225208826).

Almost surely, 2^667487387215 is an apocalyptic number.

667487387215 is a deficient number, since it is larger than the sum of its proper divisors (206314283393).

667487387215 is a wasteful number, since it uses less digits than its factorization.

667487387215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12136134329.

The product of its digits is 94832640, while the sum is 64.

The spelling of 667487387215 in words is "six hundred sixty-seven billion, four hundred eighty-seven million, three hundred eighty-seven thousand, two hundred fifteen".