157143666 has 8 divisors (see below), whose sum is σ = 314287344. Its totient is φ = 52381220.

The previous prime is 157143653. The next prime is 157143671. The reversal of 157143666 is 666341751.

157143666 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.

157143666 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13095300 + ... + 13095311.

It is an arithmetic number, because the mean of its divisors is an integer number (39285918).

Almost surely, 2^157143666 is an apocalyptic number.

157143666 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.

157143666 is a wasteful number, since it uses less digits than its factorization.

157143666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26190616.

The product of its digits is 90720, while the sum is 39.

The square root of 157143666 is about 12535.6956727579. The cubic root of 157143666 is about 539.6335717104.

The spelling of 157143666 in words is "one hundred fifty-seven million, one hundred forty-three thousand, six hundred sixty-six".