55416347440000 has 160 divisors (see below), whose sum is σ = 141684068928600. Its totient is φ = 21567442176000.

The previous prime is 55416347439949. The next prime is 55416347440001. The reversal of 55416347440000 is 4474361455.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55416347440001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6400870 + ... + 12320869.

Almost surely, 2^{55416347440000} is an apocalyptic number.

55416347440000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55416347440000 is an abundant number, since it is smaller than the sum of its proper divisors (86267721488600).

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

55416347440000 is an equidigital number, since it uses as much as digits as its factorization.

55416347440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18721810 (or 18721783 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 43.

The spelling of 55416347440000 in words is "fifty-five trillion, four hundred sixteen billion, three hundred forty-seven million, four hundred forty thousand".