16726220231211 has 32 divisors (see below), whose sum is σ = 24961807808000. Its totient is φ = 11068838871264.

The previous prime is 16726220231141. The next prime is 16726220231299. The reversal of 16726220231211 is 11213202262761.

16726220231211 is a `hidden beast` number, since 1 + 6 + 7 + 2 + 622 + 0 + 2 + 3 + 1 + 21 + 1 = 666.

It is not a de Polignac number, because 16726220231211 - 2¹⁴ = 16726220214827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16726220231111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23568210 + ... + 24267528.

It is an arithmetic number, because the mean of its divisors is an integer number (780056494000).

Almost surely, 2^{16726220231211} is an apocalyptic number.

16726220231211 is a deficient number, since it is larger than the sum of its proper divisors (8235587576789).

16726220231211 is a wasteful number, since it uses less digits than its factorization.

16726220231211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705840 (or 705834 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

Adding to 16726220231211 its reverse (11213202262761), we get a palindrome (27939422493972).

The spelling of 16726220231211 in words is "sixteen trillion, seven hundred twenty-six billion, two hundred twenty million, two hundred thirty-one thousand, two hundred eleven".