21704033158 has 8 divisors (see below), whose sum is σ = 32592755952. Its totient is φ = 10839781176.

The previous prime is 21704033137. The next prime is 21704033177. The reversal of 21704033158 is 85133040712.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6115485 + ... + 6119032.

It is an arithmetic number, because the mean of its divisors is an integer number (4074094494).

Almost surely, 2^21704033158 is an apocalyptic number.

21704033158 is a deficient number, since it is larger than the sum of its proper divisors (10888722794).

21704033158 is a wasteful number, since it uses less digits than its factorization.

21704033158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12235406.

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 21704033158 in words is "twenty-one billion, seven hundred four million, thirty-three thousand, one hundred fifty-eight".