201230066 has 4 divisors (see below), whose sum is σ = 301845102. Its totient is φ = 100615032.

The previous prime is 201230063. The next prime is 201230069. The reversal of 201230066 is 660032102.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (201230063) and next prime (201230069).

It can be written as a sum of positive squares in only one way, i.e., 168454441 + 32775625 = 12979^2 + 5725^2 .

It is not an unprimeable number, because it can be changed into a prime (201230063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50307515 + ... + 50307518.

Almost surely, 2^201230066 is an apocalyptic number.

201230066 is a deficient number, since it is larger than the sum of its proper divisors (100615036).

201230066 is a wasteful number, since it uses less digits than its factorization.

201230066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100615035.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 201230066 is about 14185.5583605299. The cubic root of 201230066 is about 586.0000097070. Note that the first 5 decimals are identical.

Adding to 201230066 its reverse (660032102), we get a palindrome (861262168).

The spelling of 201230066 in words is "two hundred one million, two hundred thirty thousand, sixty-six".