55605272765646 has 16 divisors (see below), whose sum is σ = 111210623270784. Its totient is φ = 18535077965304.

The previous prime is 55605272765633. The next prime is 55605272765689. The reversal of 55605272765646 is 64656727250655.

55605272765646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10622541 + ... + 14968263.

It is an arithmetic number, because the mean of its divisors is an integer number (6950663954424).

Almost surely, 2^{55605272765646} is an apocalyptic number.

55605272765646 is an abundant number, since it is smaller than the sum of its proper divisors (55605350505138).

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

55605272765646 is a wasteful number, since it uses less digits than its factorization.

55605272765646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6478295.

The product of its (nonzero) digits is 635040000, while the sum is 66.

The spelling of 55605272765646 in words is "fifty-five trillion, six hundred five billion, two hundred seventy-two million, seven hundred sixty-five thousand, six hundred forty-six".