55353540685668 has 12 divisors (see below), whose sum is σ = 129158261599920. Its totient is φ = 18451180228552.

The previous prime is 55353540685649. The next prime is 55353540685687. The reversal of 55353540685668 is 86658604535355.

It is an interprime number because it is at equal distance from previous prime (55353540685649) and next prime (55353540685687).

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2306397528558 + ... + 2306397528581.

It is an arithmetic number, because the mean of its divisors is an integer number (10763188466660).

Almost surely, 2^{55353540685668} is an apocalyptic number.

It is an amenable number.

55353540685668 is an abundant number, since it is smaller than the sum of its proper divisors (73804720914252).

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

55353540685668 is a wasteful number, since it uses less digits than its factorization.

55353540685668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4612795057146 (or 4612795057144 counting only the distinct ones).

The product of its (nonzero) digits is 1555200000, while the sum is 69.

The spelling of 55353540685668 in words is "fifty-five trillion, three hundred fifty-three billion, five hundred forty million, six hundred eighty-five thousand, six hundred sixty-eight".