54499386816 has 588 divisors, whose sum is σ = 194957273280. Its totient is φ = 15049359360.

The previous prime is 54499386797. The next prime is 54499386827. The reversal of 54499386816 is 61868399445.

54499386816 is a `hidden beast` number, since 54 + 499 + 3 + 86 + 8 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (588).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 70870080 + ... + 70870848.

Almost surely, 2^54499386816 is an apocalyptic number.

54499386816 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54499386816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97478636640).

54499386816 is an abundant number, since it is smaller than the sum of its proper divisors (140457886464).

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

54499386816 is an equidigital number, since it uses as much as digits as its factorization.

54499386816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844 (or 812 counting only the distinct ones).

The product of its digits is 44789760, while the sum is 63.

The spelling of 54499386816 in words is "fifty-four billion, four hundred ninety-nine million, three hundred eighty-six thousand, eight hundred sixteen".