166702043 has 4 divisors (see below), whose sum is σ = 167156640. Its totient is φ = 166247448.

The previous prime is 166702033. The next prime is 166702049. The reversal of 166702043 is 340207661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340207661 = 103 ⋅3302987.

It is a cyclic number.

It is not a de Polignac number, because 166702043 - 2²² = 162507739 is a prime.

It is a super-2 number, since 2×166702043² = 55579142280747698, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166701997 and 166702015.

It is not an unprimeable number, because it can be changed into a prime (166702049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226748 + ... + 227481.

It is an arithmetic number, because the mean of its divisors is an integer number (41789160).

Almost surely, 2^166702043 is an apocalyptic number.

166702043 is a deficient number, since it is larger than the sum of its proper divisors (454597).

166702043 is an equidigital number, since it uses as much as digits as its factorization.

166702043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454596.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 166702043 is about 12911.3145341596. The cubic root of 166702043 is about 550.3601420876.

The spelling of 166702043 in words is "one hundred sixty-six million, seven hundred two thousand, forty-three".