55180439999 has 8 divisors (see below), whose sum is σ = 55371600000. Its totient is φ = 54989488792.

The previous prime is 55180439989. The next prime is 55180440001. The reversal of 55180439999 is 99993408155.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55180439999 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 (55180439959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 486872 + ... + 589410.

It is an arithmetic number, because the mean of its divisors is an integer number (6921450000).

Almost surely, 2^55180439999 is an apocalyptic number.

55180439999 is a deficient number, since it is larger than the sum of its proper divisors (191160001).

55180439999 is a wasteful number, since it uses less digits than its factorization.

55180439999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104397.

The product of its (nonzero) digits is 15746400, while the sum is 62.

The spelling of 55180439999 in words is "fifty-five billion, one hundred eighty million, four hundred thirty-nine thousand, nine hundred ninety-nine".