55629368568 has 80 divisors (see below), whose sum is σ = 156084830880. Its totient is φ = 18510861312.

The previous prime is 55629368563. The next prime is 55629368657. The reversal of 55629368568 is 86586392655.

55629368568 is a `hidden beast` number, since 5 + 5 + 6 + 2 + 9 + 3 + 68 + 568 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55629368563) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 299505 + ... + 448287.

It is an arithmetic number, because the mean of its divisors is an integer number (1951060386).

Almost surely, 2^55629368568 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 55629368568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78042415440).

55629368568 is an abundant number, since it is smaller than the sum of its proper divisors (100455462312).

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

55629368568 is a wasteful number, since it uses less digits than its factorization.

55629368568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149378 (or 149365 counting only the distinct ones).

The product of its digits is 93312000, while the sum is 63.

The spelling of 55629368568 in words is "fifty-five billion, six hundred twenty-nine million, three hundred sixty-eight thousand, five hundred sixty-eight".