153198666 has 12 divisors (see below), whose sum is σ = 331930482. Its totient is φ = 51066216.

The previous prime is 153198629. The next prime is 153198667. The reversal of 153198666 is 666891351.

It can be written as a sum of positive squares in only one way, i.e., 127035441 + 26163225 = 11271^2 + 5115^2 .

It is not an unprimeable number, because it can be changed into a prime (153198667) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4255501 + ... + 4255536.

Almost surely, 2^153198666 is an apocalyptic number.

153198666 is an abundant number, since it is smaller than the sum of its proper divisors (178731816).

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

153198666 is a wasteful number, since it uses less digits than its factorization.

153198666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8511045 (or 8511042 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 153198666 is about 12377.3448687511. The cubic root of 153198666 is about 535.0795188525.

The spelling of 153198666 in words is "one hundred fifty-three million, one hundred ninety-eight thousand, six hundred sixty-six".