166728462027 has 8 divisors (see below), whose sum is σ = 222309546816. Its totient is φ = 111149842632.

The previous prime is 166728462011. The next prime is 166728462127. The reversal of 166728462027 is 720264827661.

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

It is not a de Polignac number, because 166728462027 - 2⁴ = 166728462011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166728462007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452313 + ... + 733514.

It is an arithmetic number, because the mean of its divisors is an integer number (27788693352).

Almost surely, 2^166728462027 is an apocalyptic number.

166728462027 is a deficient number, since it is larger than the sum of its proper divisors (55581084789).

166728462027 is a wasteful number, since it uses less digits than its factorization.

166728462027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232697.

The product of its (nonzero) digits is 2709504, while the sum is 51.

The spelling of 166728462027 in words is "one hundred sixty-six billion, seven hundred twenty-eight million, four hundred sixty-two thousand, twenty-seven".