55166160009 has 4 divisors (see below), whose sum is σ = 73554880016. Its totient is φ = 36777440004.

The previous prime is 55166159987. The next prime is 55166160013. The reversal of 55166160009 is 90006166155.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 55166160009 - 2⁹ = 55166159497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55166170009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9194359999 + ... + 9194360004.

It is an arithmetic number, because the mean of its divisors is an integer number (18388720004).

Almost surely, 2^55166160009 is an apocalyptic number.

It is an amenable number.

55166160009 is a deficient number, since it is larger than the sum of its proper divisors (18388720007).

55166160009 is a wasteful number, since it uses less digits than its factorization.

55166160009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18388720006.

The product of its (nonzero) digits is 48600, while the sum is 39.

The spelling of 55166160009 in words is "fifty-five billion, one hundred sixty-six million, one hundred sixty thousand, nine".