18226320133 has 12 divisors (see below), whose sum is σ = 22317944160. Its totient is φ = 14800319352.

The previous prime is 18226320103. The next prime is 18226320163. The reversal of 18226320133 is 33102362281.

It is an interprime number because it is at equal distance from previous prime (18226320103) and next prime (18226320163).

It is not a de Polignac number, because 18226320133 - 2¹³ = 18226311941 is a prime.

It is a super-2 number, since 2×18226320133² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18226320095 and 18226320104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18226320103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9787641 + ... + 9789502.

It is an arithmetic number, because the mean of its divisors is an integer number (1859828680).

Almost surely, 2^18226320133 is an apocalyptic number.

It is an amenable number.

18226320133 is a deficient number, since it is larger than the sum of its proper divisors (4091624027).

18226320133 is a wasteful number, since it uses less digits than its factorization.

18226320133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19577176 (or 19577169 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 18226320133 in words is "eighteen billion, two hundred twenty-six million, three hundred twenty thousand, one hundred thirty-three".