55020492216 has 160 divisors (see below), whose sum is σ = 155592835200. Its totient is φ = 18164347200.

The previous prime is 55020492211. The next prime is 55020492227. The reversal of 55020492216 is 61229402055.

55020492216 is a `hidden beast` number, since 550 + 2 + 0 + 4 + 92 + 2 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55020492211) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 37918291 + ... + 37919741.

It is an arithmetic number, because the mean of its divisors is an integer number (972455220).

Almost surely, 2^55020492216 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 55020492216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77796417600).

55020492216 is an abundant number, since it is smaller than the sum of its proper divisors (100572342984).

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

55020492216 is a wasteful number, since it uses less digits than its factorization.

55020492216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1991 (or 1978 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 55020492216 in words is "fifty-five billion, twenty million, four hundred ninety-two thousand, two hundred sixteen".