55065166245 has 18 divisors (see below), whose sum is σ = 95449016754. Its totient is φ = 29367249120.

The previous prime is 55065166241. The next prime is 55065166267. The reversal of 55065166245 is 54266156055.

55065166245 is a `hidden beast` number, since 5 + 5 + 0 + 6 + 5 + 16 + 624 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 7799362596 + 47265803649 = 88314^2 + 217407^2 .

It is not a de Polignac number, because 55065166245 - 2² = 55065166241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 55065166245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55065166241) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1556655 + ... + 1591635.

It is an arithmetic number, because the mean of its divisors is an integer number (5302723153).

Almost surely, 2^55065166245 is an apocalyptic number.

It is an amenable number.

55065166245 is a deficient number, since it is larger than the sum of its proper divisors (40383850509).

55065166245 is an frugal number, since it uses more digits than its factorization.

55065166245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69973 (or 34989 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 45.

Multiplying 55065166245 by its sum of digits (45), we get a square (2477932481025 = 1574145²).

55065166245 divided by its sum of digits (45) gives a square (1223670361 = 34981²).

The spelling of 55065166245 in words is "fifty-five billion, sixty-five million, one hundred sixty-six thousand, two hundred forty-five".