21167832241 has 8 divisors (see below), whose sum is σ = 21271821984. Its totient is φ = 21064074720.

The previous prime is 21167832229. The next prime is 21167832247. The reversal of 21167832241 is 14223876112.

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

It is a cyclic number.

It is not a de Polignac number, because 21167832241 - 2¹⁷ = 21167701169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21167832241.

It is not an unprimeable number, because it can be changed into a prime (21167832247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126126 + ... + 241336.

It is an arithmetic number, because the mean of its divisors is an integer number (2658977748).

Almost surely, 2^21167832241 is an apocalyptic number.

It is an amenable number.

21167832241 is a deficient number, since it is larger than the sum of its proper divisors (103989743).

21167832241 is a wasteful number, since it uses less digits than its factorization.

21167832241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116111.

The product of its digits is 32256, while the sum is 37.

The spelling of 21167832241 in words is "twenty-one billion, one hundred sixty-seven million, eight hundred thirty-two thousand, two hundred forty-one".