6557172016 has 20 divisors (see below), whose sum is σ = 12753962712. Its totient is φ = 3265826816.

The previous prime is 6557172007. The next prime is 6557172029. The reversal of 6557172016 is 6102717556.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6557172016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 793210 + ... + 801433.

Almost surely, 2^6557172016 is an apocalyptic number.

It is an amenable number.

6557172016 is a deficient number, since it is larger than the sum of its proper divisors (6196790696).

6557172016 is a wasteful number, since it uses less digits than its factorization.

6557172016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1594908 (or 1594902 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 40.

The square root of 6557172016 is about 80976.3670214958. The cubic root of 6557172016 is about 1871.7112854353.

The spelling of 6557172016 in words is "six billion, five hundred fifty-seven million, one hundred seventy-two thousand, sixteen".