54599408640 has 704 divisors, whose sum is σ = 234871142400. Its totient is φ = 11742216192.

The previous prime is 54599408599. The next prime is 54599408671. The reversal of 54599408640 is 4680499545.

54599408640 is a `hidden beast` number, since 5 + 4 + 599 + 4 + 0 + 8 + 6 + 40 = 666.

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 63 ways as a sum of consecutive naturals, for example, 16448901 + ... + 16452219.

Almost surely, 2^54599408640 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 54599408640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117435571200).

54599408640 is an abundant number, since it is smaller than the sum of its proper divisors (180271733760).

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

54599408640 is a wasteful number, since it uses less digits than its factorization.

54599408640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3377 (or 3353 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 54599408640 in words is "fifty-four billion, five hundred ninety-nine million, four hundred eight thousand, six hundred forty".