55204636416 has 144 divisors (see below), whose sum is σ = 148393860384. Its totient is φ = 18218483712.

The previous prime is 55204636397. The next prime is 55204636423. The reversal of 55204636416 is 61463640255.

55204636416 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 an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42562680 + ... + 42563976.

Almost surely, 2^55204636416 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 55204636416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74196930192).

55204636416 is an abundant number, since it is smaller than the sum of its proper divisors (93189223968).

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

55204636416 is a wasteful number, since it uses less digits than its factorization.

55204636416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1826 (or 1812 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 55204636416 in words is "fifty-five billion, two hundred four million, six hundred thirty-six thousand, four hundred sixteen".