667481220275 has 12 divisors (see below), whose sum is σ = 828015030432. Its totient is φ = 533766707040.

The previous prime is 667481220251. The next prime is 667481220293. The reversal of 667481220275 is 572022184766.

It is not a de Polignac number, because 667481220275 - 2⁸ = 667481220019 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5394332 + ... + 5516681.

It is an arithmetic number, because the mean of its divisors is an integer number (69001252536).

Almost surely, 2^667481220275 is an apocalyptic number.

667481220275 is a deficient number, since it is larger than the sum of its proper divisors (160533810157).

667481220275 is a wasteful number, since it uses less digits than its factorization.

667481220275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10913470 (or 10913465 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 50.

The spelling of 667481220275 in words is "six hundred sixty-seven billion, four hundred eighty-one million, two hundred twenty thousand, two hundred seventy-five".