166513369 has 8 divisors (see below), whose sum is σ = 187511040. Its totient is φ = 146492400.

The previous prime is 166513367. The next prime is 166513427. The reversal of 166513369 is 963315661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166513369 - 2¹ = 166513367 is a prime.

It is a super-2 number, since 2×166513369² = 55453404111460322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166513367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243814 + ... + 244495.

It is an arithmetic number, because the mean of its divisors is an integer number (23438880).

Almost surely, 2^166513369 is an apocalyptic number.

It is an amenable number.

166513369 is a deficient number, since it is larger than the sum of its proper divisors (20997671).

166513369 is a wasteful number, since it uses less digits than its factorization.

166513369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488351.

The product of its digits is 87480, while the sum is 40.

The square root of 166513369 is about 12904.0059283929. The cubic root of 166513369 is about 550.1524304778.

The spelling of 166513369 in words is "one hundred sixty-six million, five hundred thirteen thousand, three hundred sixty-nine".