55556671729999 has 8 divisors (see below), whose sum is σ = 60607513446480. Its totient is φ = 50505869212800.

The previous prime is 55556671729967. The next prime is 55556671730003. The reversal of 55556671729999 is 99992717665555.

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

It is a cyclic number.

It is not a de Polignac number, because 55556671729999 - 2⁵ = 55556671729967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55556671720999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6796372 + ... + 12542089.

It is an arithmetic number, because the mean of its divisors is an integer number (7575939180810).

Almost surely, 2^{55556671729999} is an apocalyptic number.

55556671729999 is a deficient number, since it is larger than the sum of its proper divisors (5050841716481).

55556671729999 is a wasteful number, since it uses less digits than its factorization.

55556671729999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19599641.

The product of its digits is 14467005000, while the sum is 85.

The spelling of 55556671729999 in words is "fifty-five trillion, five hundred fifty-six billion, six hundred seventy-one million, seven hundred twenty-nine thousand, nine hundred ninety-nine".