166135753 has 8 divisors (see below), whose sum is σ = 199862720. Its totient is φ = 134907120.

The previous prime is 166135733. The next prime is 166135759. The reversal of 166135753 is 357531661.

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

It is a cyclic number.

It is not a de Polignac number, because 166135753 - 2⁹ = 166135241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166135759) 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, 624438 + ... + 624703.

It is an arithmetic number, because the mean of its divisors is an integer number (24982840).

Almost surely, 2^166135753 is an apocalyptic number.

It is an amenable number.

166135753 is a deficient number, since it is larger than the sum of its proper divisors (33726967).

166135753 is a wasteful number, since it uses less digits than its factorization.

166135753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249167.

The product of its digits is 56700, while the sum is 37.

The square root of 166135753 is about 12889.3658882041. The cubic root of 166135753 is about 549.7362404731.

It can be divided in two parts, 16613 and 5753, that added together give a triangular number (22366 = T₂₁₁).

The spelling of 166135753 in words is "one hundred sixty-six million, one hundred thirty-five thousand, seven hundred fifty-three".