21133132264 has 64 divisors (see below), whose sum is σ = 41842851840. Its totient is φ = 9991442880.

The previous prime is 21133132249. The next prime is 21133132277. The reversal of 21133132264 is 46223133112.

It is a happy 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, 9591787 + ... + 9593989.

It is an arithmetic number, because the mean of its divisors is an integer number (653794560).

Almost surely, 2^21133132264 is an apocalyptic number.

It is an amenable number.

21133132264 is a deficient number, since it is larger than the sum of its proper divisors (20709719576).

21133132264 is a wasteful number, since it uses less digits than its factorization.

21133132264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3110 (or 3106 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

Adding to 21133132264 its reverse (46223133112), we get a palindrome (67356265376).

The spelling of 21133132264 in words is "twenty-one billion, one hundred thirty-three million, one hundred thirty-two thousand, two hundred sixty-four".