55166241623 has 4 divisors (see below), whose sum is σ = 55167330288. Its totient is φ = 55165152960.

The previous prime is 55166241617. The next prime is 55166241631. The reversal of 55166241623 is 32614266155.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55166241623 - 2⁴ = 55166241607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55166241653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 464411 + ... + 570972.

It is an arithmetic number, because the mean of its divisors is an integer number (13791832572).

Almost surely, 2^55166241623 is an apocalyptic number.

55166241623 is a deficient number, since it is larger than the sum of its proper divisors (1088665).

55166241623 is a wasteful number, since it uses less digits than its factorization.

55166241623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088664.

The product of its digits is 259200, while the sum is 41.

The spelling of 55166241623 in words is "fifty-five billion, one hundred sixty-six million, two hundred forty-one thousand, six hundred twenty-three".