667252385485 has 16 divisors (see below), whose sum is σ = 917804399616. Its totient is φ = 456186786048.

The previous prime is 667252385447. The next prime is 667252385557. The reversal of 667252385485 is 584583252766.

It is not a de Polignac number, because 667252385485 - 2¹⁷ = 667252254413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28273597 + ... + 28297186.

It is an arithmetic number, because the mean of its divisors is an integer number (57362774976).

Almost surely, 2^667252385485 is an apocalyptic number.

It is an amenable number.

667252385485 is a deficient number, since it is larger than the sum of its proper divisors (250552014131).

667252385485 is a wasteful number, since it uses less digits than its factorization.

667252385485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56571132.

The product of its digits is 96768000, while the sum is 61.

The spelling of 667252385485 in words is "six hundred sixty-seven billion, two hundred fifty-two million, three hundred eighty-five thousand, four hundred eighty-five".