55983452329728 has 864 divisors, whose sum is σ = 208330983124992. Its totient is φ = 14031736012800.

The previous prime is 55983452329711. The next prime is 55983452329769. The reversal of 55983452329728 is 82792325438955.

55983452329728 is a `hidden beast` number, since 5 + 5 + 9 + 8 + 3 + 4 + 523 + 2 + 97 + 2 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1941361326 + ... + 1941390162.

Almost surely, 2^{55983452329728} 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 55983452329728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104165491562496).

55983452329728 is an abundant number, since it is smaller than the sum of its proper divisors (152347530795264).

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

55983452329728 is a wasteful number, since it uses less digits than its factorization.

55983452329728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29261 (or 29244 counting only the distinct ones).

The product of its digits is 1306368000, while the sum is 72.

The spelling of 55983452329728 in words is "fifty-five trillion, nine hundred eighty-three billion, four hundred fifty-two million, three hundred twenty-nine thousand, seven hundred twenty-eight".