21167116311 has 8 divisors (see below), whose sum is σ = 30788532864. Its totient is φ = 12828555320.

The previous prime is 21167116277. The next prime is 21167116339. The reversal of 21167116311 is 11361176112.

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 21167116311 - 2⁶ = 21167116247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21167116111) 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, 320713851 + ... + 320713916.

It is an arithmetic number, because the mean of its divisors is an integer number (3848566608).

Almost surely, 2^21167116311 is an apocalyptic number.

21167116311 is a deficient number, since it is larger than the sum of its proper divisors (9621416553).

21167116311 is a wasteful number, since it uses less digits than its factorization.

21167116311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641427781.

The product of its digits is 1512, while the sum is 30.

The spelling of 21167116311 in words is "twenty-one billion, one hundred sixty-seven million, one hundred sixteen thousand, three hundred eleven".