157185732666 has 8 divisors (see below), whose sum is σ = 314371465344. Its totient is φ = 52395244220.

The previous prime is 157185732653. The next prime is 157185732703. The reversal of 157185732666 is 666237581751.

157185732666 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.

157185732666 is an admirable 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, 13098811050 + ... + 13098811061.

It is an arithmetic number, because the mean of its divisors is an integer number (39296433168).

Almost surely, 2^157185732666 is an apocalyptic number.

157185732666 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.

157185732666 is a wasteful number, since it uses less digits than its factorization.

157185732666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26197622116.

The product of its digits is 12700800, while the sum is 57.

The spelling of 157185732666 in words is "one hundred fifty-seven billion, one hundred eighty-five million, seven hundred thirty-two thousand, six hundred sixty-six".