55168354368 has 112 divisors (see below), whose sum is σ = 162583368000. Its totient is φ = 18344254464.

The previous prime is 55168354361. The next prime is 55168354453. The reversal of 55168354368 is 86345386155.

It is a happy number.

55168354368 is a `hidden beast` number, since 5 + 5 + 16 + 83 + 543 + 6 + 8 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (55168354361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 667723 + ... + 745781.

Almost surely, 2^55168354368 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 55168354368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81291684000).

55168354368 is an abundant number, since it is smaller than the sum of its proper divisors (107415013632).

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

55168354368 is a wasteful number, since it uses less digits than its factorization.

55168354368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78489 (or 78473 counting only the distinct ones).

The product of its digits is 10368000, while the sum is 54.

The spelling of 55168354368 in words is "fifty-five billion, one hundred sixty-eight million, three hundred fifty-four thousand, three hundred sixty-eight".