55416660823 has 2 divisors, whose sum is σ = 55416660824. Its totient is φ = 55416660822.

The previous prime is 55416660811. The next prime is 55416660829. The reversal of 55416660823 is 32806661455.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55416660823 - 2²⁹ = 54879789911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55416660829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27708330411 + 27708330412.

It is an arithmetic number, because the mean of its divisors is an integer number (27708330412).

Almost surely, 2^55416660823 is an apocalyptic number.

55416660823 is a deficient number, since it is larger than the sum of its proper divisors (1).

55416660823 is an equidigital number, since it uses as much as digits as its factorization.

55416660823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 55416660823 in words is "fifty-five billion, four hundred sixteen million, six hundred sixty thousand, eight hundred twenty-three".