151666172 has 36 divisors (see below), whose sum is σ = 319407480. Its totient is φ = 62756064.

The previous prime is 151666171. The next prime is 151666199. The reversal of 151666172 is 271666151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151666171) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7658 + ... + 19025.

It is an arithmetic number, because the mean of its divisors is an integer number (8872430).

Almost surely, 2^151666172 is an apocalyptic number.

It is an amenable number.

151666172 is an abundant number, since it is smaller than the sum of its proper divisors (167741308).

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

151666172 is a wasteful number, since it uses less digits than its factorization.

151666172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26730 (or 26721 counting only the distinct ones).

The product of its digits is 15120, while the sum is 35.

The square root of 151666172 is about 12315.2820511753. The cubic root of 151666172 is about 533.2893472404.

The spelling of 151666172 in words is "one hundred fifty-one million, six hundred sixty-six thousand, one hundred seventy-two".