20668133224 has 32 divisors (see below), whose sum is σ = 40892040000. Its totient is φ = 9773686912.

The previous prime is 20668133219. The next prime is 20668133243. The reversal of 20668133224 is 42233186602.

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, 614674 + ... + 647425.

It is an arithmetic number, because the mean of its divisors is an integer number (1277876250).

Almost surely, 2^20668133224 is an apocalyptic number.

It is an amenable number.

20668133224 is a deficient number, since it is larger than the sum of its proper divisors (20223906776).

20668133224 is a wasteful number, since it uses less digits than its factorization.

20668133224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262217 (or 1262213 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 37.

The spelling of 20668133224 in words is "twenty billion, six hundred sixty-eight million, one hundred thirty-three thousand, two hundred twenty-four".