55167218879 has 2 divisors, whose sum is σ = 55167218880. Its totient is φ = 55167218878.

The previous prime is 55167218849. The next prime is 55167218881. The reversal of 55167218879 is 97881276155.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55167218879 - 2³² = 50872251583 is a prime.

Together with 55167218881, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55167218849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27583609439 + 27583609440.

It is an arithmetic number, because the mean of its divisors is an integer number (27583609440).

Almost surely, 2^55167218879 is an apocalyptic number.

55167218879 is a deficient number, since it is larger than the sum of its proper divisors (1).

55167218879 is an equidigital number, since it uses as much as digits as its factorization.

55167218879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8467200, while the sum is 59.

The spelling of 55167218879 in words is "fifty-five billion, one hundred sixty-seven million, two hundred eighteen thousand, eight hundred seventy-nine".