55129196160 has 576 divisors, whose sum is σ = 208385143200. Its totient is φ = 13907220480.

The previous prime is 55129196159. The next prime is 55129196173. The reversal of 55129196160 is 6169192155.

It is a happy number.

55129196160 is a `hidden beast` number, since 5 + 5 + 1 + 29 + 1 + 9 + 616 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

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

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 79781415 + ... + 79782105.

Almost surely, 2^55129196160 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 55129196160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104192571600).

55129196160 is an abundant number, since it is smaller than the sum of its proper divisors (153255947040).

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

55129196160 is an frugal number, since it uses more digits than its factorization.

55129196160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753 (or 720 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 45.

The spelling of 55129196160 in words is "fifty-five billion, one hundred twenty-nine million, one hundred ninety-six thousand, one hundred sixty".