172005353672 has 64 divisors (see below), whose sum is σ = 337257043200. Its totient is φ = 82160386560.

The previous prime is 172005353659. The next prime is 172005353687. The reversal of 172005353672 is 276353500271.

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 15 ways as a sum of consecutive naturals, for example, 34613204 + ... + 34618172.

It is an arithmetic number, because the mean of its divisors is an integer number (5269641300).

Almost surely, 2^172005353672 is an apocalyptic number.

It is an amenable number.

172005353672 is a deficient number, since it is larger than the sum of its proper divisors (165251689528).

172005353672 is a wasteful number, since it uses less digits than its factorization.

172005353672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7206 (or 7202 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 41.

The spelling of 172005353672 in words is "one hundred seventy-two billion, five million, three hundred fifty-three thousand, six hundred seventy-two".