660222066460 has 24 divisors (see below), whose sum is σ = 1512508734576. Its totient is φ = 240080751360.

The previous prime is 660222066433. The next prime is 660222066487. The reversal of 660222066460 is 64660222066.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (660222066433) and next prime (660222066487).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1500504477 + ... + 1500504916.

It is an arithmetic number, because the mean of its divisors is an integer number (63021197274).

Almost surely, 2^660222066460 is an apocalyptic number.

It is an amenable number.

660222066460 is an abundant number, since it is smaller than the sum of its proper divisors (852286668116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

660222066460 is a wasteful number, since it uses less digits than its factorization.

660222066460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3001009413 (or 3001009411 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 660222066460 in words is "six hundred sixty billion, two hundred twenty-two million, sixty-six thousand, four hundred sixty".