120581066 has 4 divisors (see below), whose sum is σ = 180871602. Its totient is φ = 60290532.

The previous prime is 120581033. The next prime is 120581093. The reversal of 120581066 is 660185021.

It is a happy number.

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., 91107025 + 29474041 = 9545^2 + 5429^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30145265 + ... + 30145268.

Almost surely, 2^120581066 is an apocalyptic number.

120581066 is a deficient number, since it is larger than the sum of its proper divisors (60290536).

120581066 is an equidigital number, since it uses as much as digits as its factorization.

120581066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60290535.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 120581066 is about 10980.9410343558. The cubic root of 120581066 is about 494.0372621830.

The spelling of 120581066 in words is "one hundred twenty million, five hundred eighty-one thousand, sixty-six".