55664037600 has 144 divisors (see below), whose sum is σ = 181979446320. Its totient is φ = 14778777600.

The previous prime is 55664037557. The next prime is 55664037619. The reversal of 55664037600 is 673046655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 498960 + ... + 600240.

It is an arithmetic number, because the mean of its divisors is an integer number (1263746155).

Almost surely, 2^55664037600 is an apocalyptic number.

55664037600 is a gapful number since it is divisible by the number (50) 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 55664037600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90989723160).

55664037600 is an abundant number, since it is smaller than the sum of its proper divisors (126315408720).

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

55664037600 is a wasteful number, since it uses less digits than its factorization.

55664037600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101533 (or 101520 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 42.

The spelling of 55664037600 in words is "fifty-five billion, six hundred sixty-four million, thirty-seven thousand, six hundred".