55929773472768 has 880 divisors, whose sum is σ = 185067604888320. Its totient is φ = 16713101869056.

The previous prime is 55929773472623. The next prime is 55929773472791. The reversal of 55929773472768 is 86727437792955.

55929773472768 is a `hidden beast` number, since 5 + 5 + 9 + 2 + 9 + 7 + 73 + 472 + 76 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 30680072305 + ... + 30680074127.

It is an arithmetic number, because the mean of its divisors is an integer number (210304096464).

Almost surely, 2^{55929773472768} 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 55929773472768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92533802444160).

55929773472768 is an abundant number, since it is smaller than the sum of its proper divisors (129137831415552).

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

55929773472768 is a wasteful number, since it uses less digits than its factorization.

55929773472768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2674 (or 2647 counting only the distinct ones).

The product of its digits is 11202105600, while the sum is 81.

The spelling of 55929773472768 in words is "fifty-five trillion, nine hundred twenty-nine billion, seven hundred seventy-three million, four hundred seventy-two thousand, seven hundred sixty-eight".