1120720166 has 4 divisors (see below), whose sum is σ = 1681080252. Its totient is φ = 560360082.

The previous prime is 1120720157. The next prime is 1120720169. The reversal of 1120720166 is 6610270211.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120720169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280180040 + ... + 280180043.

It is an arithmetic number, because the mean of its divisors is an integer number (420270063).

Almost surely, 2^1120720166 is an apocalyptic number.

1120720166 is a deficient number, since it is larger than the sum of its proper divisors (560360086).

1120720166 is an equidigital number, since it uses as much as digits as its factorization.

1120720166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560360085.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 1120720166 is about 33477.1588698922. The cubic root of 1120720166 is about 1038.7213594474.

Adding to 1120720166 its reverse (6610270211), we get a palindrome (7730990377).

The spelling of 1120720166 in words is "one billion, one hundred twenty million, seven hundred twenty thousand, one hundred sixty-six".