55659479040 has 360 divisors, whose sum is σ = 210518275968. Its totient is φ = 13491240960.

The previous prime is 55659479033. The next prime is 55659479087. The reversal of 55659479040 is 4097495655.

55659479040 is a `hidden beast` number, since 5 + 5 + 6 + 594 + 7 + 9 + 0 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8106649 + ... + 8113511.

Almost surely, 2^55659479040 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 55659479040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105259137984).

55659479040 is an abundant number, since it is smaller than the sum of its proper divisors (154858796928).

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

55659479040 is a wasteful number, since it uses less digits than its factorization.

55659479040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6913 (or 6884 counting only the distinct ones).

The product of its (nonzero) digits is 6804000, while the sum is 54.

The spelling of 55659479040 in words is "fifty-five billion, six hundred fifty-nine million, four hundred seventy-nine thousand, forty".