55198406016 has 256 divisors, whose sum is σ = 184680384000. Its totient is φ = 16089974784.

The previous prime is 55198405981. The next prime is 55198406041. The reversal of 55198406016 is 61060489155.

55198406016 is a `hidden beast` number, since 55 + 198 + 406 + 0 + 1 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 821301 + ... + 885963.

It is an arithmetic number, because the mean of its divisors is an integer number (721407750).

Almost surely, 2^55198406016 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 55198406016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92340192000).

55198406016 is an abundant number, since it is smaller than the sum of its proper divisors (129481977984).

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

55198406016 is a wasteful number, since it uses less digits than its factorization.

55198406016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64718 (or 64700 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The spelling of 55198406016 in words is "fifty-five billion, one hundred ninety-eight million, four hundred six thousand, sixteen".