672161775212 has 24 divisors (see below), whose sum is σ = 1177587978000. Its totient is φ = 335708271360.

The previous prime is 672161775209. The next prime is 672161775217. The reversal of 672161775212 is 212577161276.

It is a super-2 number, since 2×672161775212² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (672161775217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14228912 + ... + 14276072.

It is an arithmetic number, because the mean of its divisors is an integer number (49066165750).

Almost surely, 2^672161775212 is an apocalyptic number.

It is an amenable number.

672161775212 is a deficient number, since it is larger than the sum of its proper divisors (505426202788).

672161775212 is a wasteful number, since it uses less digits than its factorization.

672161775212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51041 (or 51039 counting only the distinct ones).

The product of its digits is 493920, while the sum is 47.

The spelling of 672161775212 in words is "six hundred seventy-two billion, one hundred sixty-one million, seven hundred seventy-five thousand, two hundred twelve".