168655151 has 4 divisors (see below), whose sum is σ = 192748752. Its totient is φ = 144561552.

The previous prime is 168655141. The next prime is 168655189. The reversal of 168655151 is 151556861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 151556861 = 31 ⋅4888931.

It is a cyclic number.

It is not a de Polignac number, because 168655151 - 2²² = 164460847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168655141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12046790 + ... + 12046803.

It is an arithmetic number, because the mean of its divisors is an integer number (48187188).

Almost surely, 2^168655151 is an apocalyptic number.

168655151 is a deficient number, since it is larger than the sum of its proper divisors (24093601).

168655151 is an equidigital number, since it uses as much as digits as its factorization.

168655151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24093600.

The product of its digits is 36000, while the sum is 38.

The square root of 168655151 is about 12986.7298039191. The cubic root of 168655151 is about 552.5011715542.

The spelling of 168655151 in words is "one hundred sixty-eight million, six hundred fifty-five thousand, one hundred fifty-one".