55769731776 has 336 divisors, whose sum is σ = 180044006688. Its totient is φ = 16356556800.

The previous prime is 55769731763. The next prime is 55769731789. The reversal of 55769731776 is 67713796755.

It is a happy number.

55769731776 is a `hidden beast` number, since 557 + 6 + 9 + 7 + 3 + 1 + 7 + 76 = 666.

It is an interprime number because it is at equal distance from previous prime (55769731763) and next prime (55769731789).

It is a super-2 number, since 2×55769731776² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54622146 + ... + 54623166.

It is an arithmetic number, because the mean of its divisors is an integer number (535845258).

Almost surely, 2^55769731776 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 55769731776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90022003344).

55769731776 is an abundant number, since it is smaller than the sum of its proper divisors (124274274912).

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

55769731776 is a wasteful number, since it uses less digits than its factorization.

55769731776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320 (or 1307 counting only the distinct ones).

The product of its digits is 58344300, while the sum is 63.

The spelling of 55769731776 in words is "fifty-five billion, seven hundred sixty-nine million, seven hundred thirty-one thousand, seven hundred seventy-six".