667214482517 has 24 divisors (see below), whose sum is σ = 735843205440. Its totient is φ = 604527105600.

The previous prime is 667214482499. The next prime is 667214482541. The reversal of 667214482517 is 715284412766.

It is a happy number.

It is not a de Polignac number, because 667214482517 - 2¹⁸ = 667214220373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667214482577) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107421542 + ... + 107427752.

It is an arithmetic number, because the mean of its divisors is an integer number (30660133560).

Almost surely, 2^667214482517 is an apocalyptic number.

It is an amenable number.

667214482517 is a deficient number, since it is larger than the sum of its proper divisors (68628722923).

667214482517 is a wasteful number, since it uses less digits than its factorization.

667214482517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9065 (or 9054 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 53.

The spelling of 667214482517 in words is "six hundred sixty-seven billion, two hundred fourteen million, four hundred eighty-two thousand, five hundred seventeen".