55158428160 has 480 divisors, whose sum is σ = 210518275968. Its totient is φ = 13235650560.

The previous prime is 55158428159. The next prime is 55158428161. The reversal of 55158428160 is 6182485155.

55158428160 is a `hidden beast` number, since 5 + 5 + 1 + 584 + 2 + 8 + 1 + 60 = 666.

It is an interprime number because it is at equal distance from previous prime (55158428159) and next prime (55158428161).

It is a tau number, because it is divible by the number of its divisors (480).

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

It is not an unprimeable number, because it can be changed into a prime (55158428161) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26103264 + ... + 26105376.

Almost surely, 2^55158428160 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 55158428160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105259137984).

55158428160 is an abundant number, since it is smaller than the sum of its proper divisors (155359847808).

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

55158428160 is a wasteful number, since it uses less digits than its factorization.

55158428160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2256 (or 2237 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 45.

The spelling of 55158428160 in words is "fifty-five billion, one hundred fifty-eight million, four hundred twenty-eight thousand, one hundred sixty".