55664499408 has 120 divisors (see below), whose sum is σ = 169774660512. Its totient is φ = 15666723072.

The previous prime is 55664499337. The next prime is 55664499427. The reversal of 55664499408 is 80499446655.

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, 19035 + ... + 334202.

Almost surely, 2^55664499408 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 55664499408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84887330256).

55664499408 is an abundant number, since it is smaller than the sum of its proper divisors (114110161104).

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

55664499408 is a wasteful number, since it uses less digits than its factorization.

55664499408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353329 (or 353316 counting only the distinct ones).

The product of its (nonzero) digits is 37324800, while the sum is 60.

The spelling of 55664499408 in words is "fifty-five billion, six hundred sixty-four million, four hundred ninety-nine thousand, four hundred eight".