120136030666 has 4 divisors (see below), whose sum is σ = 180204046002. Its totient is φ = 60068015332.

The previous prime is 120136030613. The next prime is 120136030681. The reversal of 120136030666 is 666030631021.

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

It can be written as a sum of positive squares in only one way, i.e., 101646830041 + 18489200625 = 318821^2 + 135975^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30034007665 + ... + 30034007668.

Almost surely, 2^120136030666 is an apocalyptic number.

120136030666 is a deficient number, since it is larger than the sum of its proper divisors (60068015336).

120136030666 is an equidigital number, since it uses as much as digits as its factorization.

120136030666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60068015335.

The product of its (nonzero) digits is 23328, while the sum is 34.

Adding to 120136030666 its reverse (666030631021), we get a palindrome (786166661687).

The spelling of 120136030666 in words is "one hundred twenty billion, one hundred thirty-six million, thirty thousand, six hundred sixty-six".