166740351 has 16 divisors (see below), whose sum is σ = 230016000. Its totient is φ = 107328960.

The previous prime is 166740307. The next prime is 166740367. The reversal of 166740351 is 153047661.

It is not a de Polignac number, because 166740351 - 2¹⁰ = 166739327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166740451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44611 + ... + 48203.

It is an arithmetic number, because the mean of its divisors is an integer number (14376000).

Almost surely, 2^166740351 is an apocalyptic number.

166740351 is a deficient number, since it is larger than the sum of its proper divisors (63275649).

166740351 is a wasteful number, since it uses less digits than its factorization.

166740351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4126.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 166740351 is about 12912.7979539680. The cubic root of 166740351 is about 550.4022963031.

The spelling of 166740351 in words is "one hundred sixty-six million, seven hundred forty thousand, three hundred fifty-one".