6557171432000 has 224 divisors, whose sum is σ = 18732131248896. Its totient is φ = 2227160064000.

The previous prime is 6557171431991. The next prime is 6557171432003. The reversal of 6557171432000 is 2341717556.

It is a tau number, because it is divible by the number of its divisors (224).

It is not an unprimeable number, because it can be changed into a prime (6557171432003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5444840 + ... + 6539160.

Almost surely, 2^{6557171432000} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6557171432000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9366065624448).

6557171432000 is an abundant number, since it is smaller than the sum of its proper divisors (12174959816896).

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

6557171432000 is a wasteful number, since it uses less digits than its factorization.

6557171432000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094462 (or 1094442 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 41.

The spelling of 6557171432000 in words is "six trillion, five hundred fifty-seven billion, one hundred seventy-one million, four hundred thirty-two thousand".