21650046332 has 18 divisors (see below), whose sum is σ = 38121148968. Its totient is φ = 10758312592.

The previous prime is 21650046293. The next prime is 21650046343. The reversal of 21650046332 is 23364005612.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3800078 + ... + 3805770.

Almost surely, 2^21650046332 is an apocalyptic number.

It is an amenable number.

21650046332 is a deficient number, since it is larger than the sum of its proper divisors (16471102636).

21650046332 is an frugal number, since it uses more digits than its factorization.

21650046332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11557 (or 5862 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The spelling of 21650046332 in words is "twenty-one billion, six hundred fifty million, forty-six thousand, three hundred thirty-two".