55318047622656 has 160 divisors (see below), whose sum is σ = 181379368144128. Its totient is φ = 14589375160320.

The previous prime is 55318047622577. The next prime is 55318047622679. The reversal of 55318047622656 is 65622674081355.

It is a self number, because there is not a number n which added to its sum of digits gives 55318047622656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197741290 + ... + 198020841.

Almost surely, 2^{55318047622656} is an apocalyptic number.

55318047622656 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

55318047622656 is an abundant number, since it is smaller than the sum of its proper divisors (126061320521472).

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

55318047622656 is a wasteful number, since it uses less digits than its factorization.

55318047622656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395762172 (or 395762156 counting only the distinct ones).

The product of its (nonzero) digits is 72576000, while the sum is 60.

The spelling of 55318047622656 in words is "fifty-five trillion, three hundred eighteen billion, forty-seven million, six hundred twenty-two thousand, six hundred fifty-six".