166753545 has 32 divisors (see below), whose sum is σ = 305409792. Its totient is φ = 76108032.

The previous prime is 166753537. The next prime is 166753547. The reversal of 166753545 is 545357661.

It is not a de Polignac number, because 166753545 - 2³ = 166753537 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 166753497 and 166753506.

It is not an unprimeable number, because it can be changed into a prime (166753547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114039 + ... + 115491.

It is an arithmetic number, because the mean of its divisors is an integer number (9544056).

Almost surely, 2^166753545 is an apocalyptic number.

166753545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166753545 is a deficient number, since it is larger than the sum of its proper divisors (138656247).

166753545 is a wasteful number, since it uses less digits than its factorization.

166753545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2561.

The product of its digits is 378000, while the sum is 42.

The square root of 166753545 is about 12913.3088323636. The cubic root of 166753545 is about 550.4168135177.

The spelling of 166753545 in words is "one hundred sixty-six million, seven hundred fifty-three thousand, five hundred forty-five".