55643311406 has 8 divisors (see below), whose sum is σ = 84521485920. Its totient is φ = 27469482768.

The previous prime is 55643311391. The next prime is 55643311459. The reversal of 55643311406 is 60411334655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 55643311406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176086271 + ... + 176086586.

It is an arithmetic number, because the mean of its divisors is an integer number (10565185740).

Almost surely, 2^55643311406 is an apocalyptic number.

55643311406 is a deficient number, since it is larger than the sum of its proper divisors (28878174514).

55643311406 is a wasteful number, since it uses less digits than its factorization.

55643311406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352172938.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 55643311406 in words is "fifty-five billion, six hundred forty-three million, three hundred eleven thousand, four hundred six".