55163306764109 has 2 divisors, whose sum is σ = 55163306764110. Its totient is φ = 55163306764108.

The previous prime is 55163306764099. The next prime is 55163306764127. The reversal of 55163306764109 is 90146760336155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54032055422500 + 1131251341609 = 7350650^2 + 1063603^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55163306764109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55163306764609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27581653382054 + 27581653382055.

It is an arithmetic number, because the mean of its divisors is an integer number (27581653382055).

Almost surely, 2^{55163306764109} is an apocalyptic number.

It is an amenable number.

55163306764109 is a deficient number, since it is larger than the sum of its proper divisors (1).

55163306764109 is an equidigital number, since it uses as much as digits as its factorization.

55163306764109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12247200, while the sum is 56.

The spelling of 55163306764109 in words is "fifty-five trillion, one hundred sixty-three billion, three hundred six million, seven hundred sixty-four thousand, one hundred nine".