55606660076550 has 96 divisors (see below), whose sum is σ = 150650531320320. Its totient is φ = 13461653334400.

The previous prime is 55606660076537. The next prime is 55606660076603. The reversal of 55606660076550 is 5567006660655.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22249677 + ... + 24622376.

It is an arithmetic number, because the mean of its divisors is an integer number (1569276367920).

Almost surely, 2^{55606660076550} is an apocalyptic number.

55606660076550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55606660076550 is an abundant number, since it is smaller than the sum of its proper divisors (95043871243770).

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

55606660076550 is a wasteful number, since it uses less digits than its factorization.

55606660076550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46872798 (or 46872793 counting only the distinct ones).

The product of its (nonzero) digits is 34020000, while the sum is 57.

The spelling of 55606660076550 in words is "fifty-five trillion, six hundred six billion, six hundred sixty million, seventy-six thousand, five hundred fifty".