55918163311 has 2 divisors, whose sum is σ = 55918163312. Its totient is φ = 55918163310.

The previous prime is 55918163309. The next prime is 55918163317. The reversal of 55918163311 is 11336181955.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55918163311 - 2¹ = 55918163309 is a prime.

Together with 55918163309, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55918163317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27959081655 + 27959081656.

It is an arithmetic number, because the mean of its divisors is an integer number (27959081656).

Almost surely, 2^55918163311 is an apocalyptic number.

55918163311 is a deficient number, since it is larger than the sum of its proper divisors (1).

55918163311 is an equidigital number, since it uses as much as digits as its factorization.

55918163311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97200, while the sum is 43.

The spelling of 55918163311 in words is "fifty-five billion, nine hundred eighteen million, one hundred sixty-three thousand, three hundred eleven".