55606666822099 has 2 divisors, whose sum is σ = 55606666822100. Its totient is φ = 55606666822098.

The previous prime is 55606666822079. The next prime is 55606666822153. The reversal of 55606666822099 is 99022866660655.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55606666822099 - 2³⁵ = 55572307083731 is a prime.

It is not a weakly prime, because it can be changed into another prime (55606666822079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27803333411049 + 27803333411050.

It is an arithmetic number, because the mean of its divisors is an integer number (27803333411050).

Almost surely, 2^{55606666822099} is an apocalyptic number.

55606666822099 is a deficient number, since it is larger than the sum of its proper divisors (1).

55606666822099 is an equidigital number, since it uses as much as digits as its factorization.

55606666822099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 503884800, while the sum is 70.

The spelling of 55606666822099 in words is "fifty-five trillion, six hundred six billion, six hundred sixty-six million, eight hundred twenty-two thousand, ninety-nine".