172268661118 has 16 divisors (see below), whose sum is σ = 273611265984. Its totient is φ = 81065205760.

The previous prime is 172268661107. The next prime is 172268661121. The reversal of 172268661118 is 811166862271.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1698558 + ... + 1797118.

It is an arithmetic number, because the mean of its divisors is an integer number (17100704124).

Almost surely, 2^172268661118 is an apocalyptic number.

172268661118 is a deficient number, since it is larger than the sum of its proper divisors (101342604866).

172268661118 is a wasteful number, since it uses less digits than its factorization.

172268661118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149987.

The product of its digits is 387072, while the sum is 49.

The spelling of 172268661118 in words is "one hundred seventy-two billion, two hundred sixty-eight million, six hundred sixty-one thousand, one hundred eighteen".