198166534 has 8 divisors (see below), whose sum is σ = 297331200. Its totient is φ = 99056136.

The previous prime is 198166531. The next prime is 198166537. The reversal of 198166534 is 435661891.

198166534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (198166531) and next prime (198166537).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198166531) 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, 2694 + ... + 20089.

It is an arithmetic number, because the mean of its divisors is an integer number (37166400).

Almost surely, 2^198166534 is an apocalyptic number.

198166534 is a deficient number, since it is larger than the sum of its proper divisors (99164666).

198166534 is a wasteful number, since it uses less digits than its factorization.

198166534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27134.

The product of its digits is 155520, while the sum is 43.

The square root of 198166534 is about 14077.1635637297. The cubic root of 198166534 is about 583.0110298629.

The spelling of 198166534 in words is "one hundred ninety-eight million, one hundred sixty-six thousand, five hundred thirty-four".