166513398 has 8 divisors (see below), whose sum is σ = 333026808. Its totient is φ = 55504464.

The previous prime is 166513367. The next prime is 166513427. The reversal of 166513398 is 893315661.

It is a happy number.

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

166513398 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13876111 + ... + 13876122.

It is an arithmetic number, because the mean of its divisors is an integer number (41628351).

Almost surely, 2^166513398 is an apocalyptic number.

166513398 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166513398 is a wasteful number, since it uses less digits than its factorization.

166513398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27752238.

The product of its digits is 116640, while the sum is 42.

The square root of 166513398 is about 12904.0070520749. The cubic root of 166513398 is about 550.1524624160.

The spelling of 166513398 in words is "one hundred sixty-six million, five hundred thirteen thousand, three hundred ninety-eight".