1166022445 has 16 divisors (see below), whose sum is σ = 1605818880. Its totient is φ = 796207104.

The previous prime is 1166022439. The next prime is 1166022449. The reversal of 1166022445 is 5442206611.

It is a happy number.

It is not a de Polignac number, because 1166022445 - 2⁷ = 1166022317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166022449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61332 + ... + 78061.

It is an arithmetic number, because the mean of its divisors is an integer number (100363680).

Almost surely, 2^1166022445 is an apocalyptic number.

It is an amenable number.

1166022445 is a deficient number, since it is larger than the sum of its proper divisors (439796435).

1166022445 is a wasteful number, since it uses less digits than its factorization.

1166022445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139644.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 1166022445 is about 34147.0708114181. The cubic root of 1166022445 is about 1052.5327955658.

The spelling of 1166022445 in words is "one billion, one hundred sixty-six million, twenty-two thousand, four hundred forty-five".