166002739 has 28 divisors (see below), whose sum is σ = 207532584. Its totient is φ = 132304704.

The previous prime is 166002721. The next prime is 166002743. The reversal of 166002739 is 937200661.

It is not a de Polignac number, because 166002739 - 2⁷ = 166002611 is a prime.

166002739 is a modest number, since divided by 2739 gives 166 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166012739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1999992 + ... + 2000074.

It is an arithmetic number, because the mean of its divisors is an integer number (7411878).

Almost surely, 2^166002739 is an apocalyptic number.

166002739 is a deficient number, since it is larger than the sum of its proper divisors (41529845).

166002739 is an frugal number, since it uses more digits than its factorization.

166002739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 166002739 is about 12884.2050201012. The cubic root of 166002739 is about 549.5894887184.

The spelling of 166002739 in words is "one hundred sixty-six million, two thousand, seven hundred thirty-nine".