55166160013 has 2 divisors, whose sum is σ = 55166160014. Its totient is φ = 55166160012.

The previous prime is 55166159987. The next prime is 55166160043. The reversal of 55166160013 is 31006166155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53385488809 + 1780671204 = 231053^2 + 42198^2 .

It is a cyclic number.

It is not a de Polignac number, because 55166160013 - 2⁵ = 55166159981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55166160043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27583080006 + 27583080007.

It is an arithmetic number, because the mean of its divisors is an integer number (27583080007).

Almost surely, 2^55166160013 is an apocalyptic number.

It is an amenable number.

55166160013 is a deficient number, since it is larger than the sum of its proper divisors (1).

55166160013 is an equidigital number, since it uses as much as digits as its factorization.

55166160013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 34.

The spelling of 55166160013 in words is "fifty-five billion, one hundred sixty-six million, one hundred sixty thousand, thirteen".