55555100055616 has 112 divisors (see below), whose sum is σ = 127214008289280. Its totient is φ = 23578445260800.

The previous prime is 55555100055613. The next prime is 55555100055617. The reversal of 55555100055616 is 61655000155555.

It is a tau number, because it is divible by the number of its divisors (112).

It is a self number, because there is not a number n which added to its sum of digits gives 55555100055616.

It is not an unprimeable number, because it can be changed into a prime (55555100055613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92530401 + ... + 93128863.

Almost surely, 2^{55555100055616} is an apocalyptic number.

55555100055616 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 55555100055616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63607004144640).

55555100055616 is an abundant number, since it is smaller than the sum of its proper divisors (71658908233664).

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

55555100055616 is a wasteful number, since it uses less digits than its factorization.

55555100055616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600492 (or 600482 counting only the distinct ones).

The product of its (nonzero) digits is 2812500, while the sum is 49.

The spelling of 55555100055616 in words is "fifty-five trillion, five hundred fifty-five billion, one hundred million, fifty-five thousand, six hundred sixteen".