18055535951 has 2 divisors, whose sum is σ = 18055535952. Its totient is φ = 18055535950.

The previous prime is 18055535903. The next prime is 18055535963. The reversal of 18055535951 is 15953555081.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18055535951 - 2¹⁰ = 18055534927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18055535896 and 18055535905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18055535051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9027767975 + 9027767976.

It is an arithmetic number, because the mean of its divisors is an integer number (9027767976).

Almost surely, 2^18055535951 is an apocalyptic number.

18055535951 is a deficient number, since it is larger than the sum of its proper divisors (1).

18055535951 is an equidigital number, since it uses as much as digits as its factorization.

18055535951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 675000, while the sum is 47.

The spelling of 18055535951 in words is "eighteen billion, fifty-five million, five hundred thirty-five thousand, nine hundred fifty-one".