166558064753372 has 24 divisors (see below), whose sum is σ = 307117994690640. Its totient is φ = 78818652184320.

The previous prime is 166558064753369. The next prime is 166558064753387. The reversal of 166558064753372 is 273357460855661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1073161133 + ... + 1073316324.

It is an arithmetic number, because the mean of its divisors is an integer number (12796583112110).

Almost surely, 2^{166558064753372} is an apocalyptic number.

It is an amenable number.

166558064753372 is a deficient number, since it is larger than the sum of its proper divisors (140559929937268).

166558064753372 is a wasteful number, since it uses less digits than its factorization.

166558064753372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2146478501 (or 2146478499 counting only the distinct ones).

The product of its (nonzero) digits is 762048000, while the sum is 68.

The spelling of 166558064753372 in words is "one hundred sixty-six trillion, five hundred fifty-eight billion, sixty-four million, seven hundred fifty-three thousand, three hundred seventy-two".