55511180736 has 112 divisors (see below), whose sum is σ = 162482588928. Its totient is φ = 16584601600.

The previous prime is 55511180693. The next prime is 55511180737. The reversal of 55511180736 is 63708111555.

It is a happy number.

55511180736 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55511180737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35145 + ... + 335048.

Almost surely, 2^55511180736 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 55511180736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81241294464).

55511180736 is an abundant number, since it is smaller than the sum of its proper divisors (106971408192).

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

55511180736 is a wasteful number, since it uses less digits than its factorization.

55511180736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370290 (or 370280 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 42.

The spelling of 55511180736 in words is "fifty-five billion, five hundred eleven million, one hundred eighty thousand, seven hundred thirty-six".