66001154 has 8 divisors (see below), whose sum is σ = 100114380. Its totient is φ = 32629696.

The previous prime is 66001151. The next prime is 66001163. The reversal of 66001154 is 45110066.

66001154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 64240225 + 1760929 = 8015^2 + 1327^2 .

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

It is not an unprimeable number, because it can be changed into a prime (66001151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185219 + ... + 185574.

Almost surely, 2^66001154 is an apocalyptic number.

66001154 is a deficient number, since it is larger than the sum of its proper divisors (34113226).

66001154 is a wasteful number, since it uses less digits than its factorization.

66001154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370884.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 66001154 is about 8124.1094281158. The cubic root of 66001154 is about 404.1263573975.

The spelling of 66001154 in words is "sixty-six million, one thousand, one hundred fifty-four".