166958043 has 24 divisors (see below), whose sum is σ = 260850240. Its totient is φ = 94706640.

The previous prime is 166958021. The next prime is 166958063. The reversal of 166958043 is 340859661.

It is not a de Polignac number, because 166958043 - 2⁶ = 166957979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166957986 and 166958004.

It is not an unprimeable number, because it can be changed into a prime (166958063) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16348 + ... + 24518.

It is an arithmetic number, because the mean of its divisors is an integer number (10868760).

Almost surely, 2^166958043 is an apocalyptic number.

166958043 is a deficient number, since it is larger than the sum of its proper divisors (93892197).

166958043 is a wasteful number, since it uses less digits than its factorization.

166958043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8327 (or 8320 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 166958043 is about 12921.2245162755. The cubic root of 166958043 is about 550.6417225925.

The spelling of 166958043 in words is "one hundred sixty-six million, nine hundred fifty-eight thousand, forty-three".