153440066 has 8 divisors (see below), whose sum is σ = 247864764. Its totient is φ = 70818480.

The previous prime is 153440059. The next prime is 153440069. The reversal of 153440066 is 660044351.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 139594225 + 13845841 = 11815^2 + 3721^2 .

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 (153440069) 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, 2950745 + ... + 2950796.

Almost surely, 2^153440066 is an apocalyptic number.

153440066 is a deficient number, since it is larger than the sum of its proper divisors (94424698).

153440066 is a wasteful number, since it uses less digits than its factorization.

153440066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5901556.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 153440066 is about 12387.0927178253. The cubic root of 153440066 is about 535.3604186230.

The spelling of 153440066 in words is "one hundred fifty-three million, four hundred forty thousand, sixty-six".