6555201022172 has 12 divisors (see below), whose sum is σ = 12514474678776. Its totient is φ = 2979636828240.

The previous prime is 6555201022127. The next prime is 6555201022177. The reversal of 6555201022172 is 2712201025556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6555201022177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74490920663 + ... + 74490920750.

It is an arithmetic number, because the mean of its divisors is an integer number (1042872889898).

Almost surely, 2^{6555201022172} is an apocalyptic number.

It is an amenable number.

6555201022172 is a deficient number, since it is larger than the sum of its proper divisors (5959273656604).

6555201022172 is a wasteful number, since it uses less digits than its factorization.

6555201022172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148981841428 (or 148981841426 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 38.

The spelling of 6555201022172 in words is "six trillion, five hundred fifty-five billion, two hundred one million, twenty-two thousand, one hundred seventy-two".