6600397172 has 12 divisors (see below), whose sum is σ = 11553282720. Its totient is φ = 3299459256.

The previous prime is 6600397171. The next prime is 6600397231. The reversal of 6600397172 is 2717930066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6600397171) 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, 164498 + ... + 200649.

It is an arithmetic number, because the mean of its divisors is an integer number (962773560).

Almost surely, 2^6600397172 is an apocalyptic number.

It is an amenable number.

6600397172 is a deficient number, since it is larger than the sum of its proper divisors (4952885548).

6600397172 is a wasteful number, since it uses less digits than its factorization.

6600397172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369670 (or 369668 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 6600397172 is about 81242.8284342686. The cubic root of 6600397172 is about 1875.8150811921.

The spelling of 6600397172 in words is "six billion, six hundred million, three hundred ninety-seven thousand, one hundred seventy-two".