167712315225 has 48 divisors (see below), whose sum is σ = 341273073792. Its totient is φ = 70770908160.

The previous prime is 167712315217. The next prime is 167712315227. The reversal of 167712315225 is 522513217761.

It is a happy number.

It is not a de Polignac number, because 167712315225 - 2³ = 167712315217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (167712315227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12279792 + ... + 12293441.

It is an arithmetic number, because the mean of its divisors is an integer number (7109855704).

Almost surely, 2^167712315225 is an apocalyptic number.

167712315225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

167712315225 is an abundant number, since it is smaller than the sum of its proper divisors (173560758567).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

167712315225 is a wasteful number, since it uses less digits than its factorization.

167712315225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24573266 (or 24573261 counting only the distinct ones).

The product of its digits is 176400, while the sum is 42.

The spelling of 167712315225 in words is "one hundred sixty-seven billion, seven hundred twelve million, three hundred fifteen thousand, two hundred twenty-five".