55178229456 has 160 divisors (see below), whose sum is σ = 181095552000. Its totient is φ = 15757580160.

The previous prime is 55178229437. The next prime is 55178229521. The reversal of 55178229456 is 65492287155.

55178229456 is a `hidden beast` number, since 5 + 517 + 82 + 2 + 9 + 45 + 6 = 666.

55178229456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9973411 + ... + 9978941.

It is an arithmetic number, because the mean of its divisors is an integer number (1131847200).

Almost surely, 2^55178229456 is an apocalyptic number.

55178229456 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55178229456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90547776000).

55178229456 is an abundant number, since it is smaller than the sum of its proper divisors (125917322544).

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

55178229456 is a wasteful number, since it uses less digits than its factorization.

55178229456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8854 (or 8842 counting only the distinct ones).

The product of its digits is 6048000, while the sum is 54.

The spelling of 55178229456 in words is "fifty-five billion, one hundred seventy-eight million, two hundred twenty-nine thousand, four hundred fifty-six".