156666414 has 8 divisors (see below), whose sum is σ = 313332840. Its totient is φ = 52222136.

The previous prime is 156666379. The next prime is 156666443. The reversal of 156666414 is 414666651.

It is a happy number.

156666414 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

156666414 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13055529 + ... + 13055540.

It is an arithmetic number, because the mean of its divisors is an integer number (39166605).

Almost surely, 2^156666414 is an apocalyptic number.

156666414 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

156666414 is a wasteful number, since it uses less digits than its factorization.

156666414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26111074.

The product of its digits is 103680, while the sum is 39.

The square root of 156666414 is about 12516.6454771237. The cubic root of 156666414 is about 539.0867210272.

It can be divided in two parts, 156666 and 414, that added together give a triangular number (157080 = T₅₆₀).

The spelling of 156666414 in words is "one hundred fifty-six million, six hundred sixty-six thousand, four hundred fourteen".