55395660180 has 384 divisors, whose sum is σ = 187136409600. Its totient is φ = 11978772480.

The previous prime is 55395660179. The next prime is 55395660223. The reversal of 55395660180 is 8106659355.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 158726646 + ... + 158726994.

It is an arithmetic number, because the mean of its divisors is an integer number (487334400).

Almost surely, 2^55395660180 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55395660180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93568204800).

55395660180 is an abundant number, since it is smaller than the sum of its proper divisors (131740749420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55395660180 is a wasteful number, since it uses less digits than its factorization.

55395660180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639 (or 637 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 48.

The spelling of 55395660180 in words is "fifty-five billion, three hundred ninety-five million, six hundred sixty thousand, one hundred eighty".