1166445044 has 6 divisors (see below), whose sum is σ = 2041278834. Its totient is φ = 583222520.

The previous prime is 1166445043. The next prime is 1166445053. The reversal of 1166445044 is 4405446611.

It can be written as a sum of positive squares in only one way, i.e., 906010000 + 260435044 = 30100^2 + 16138^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1166444995 and 1166445013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166445043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145805627 + ... + 145805634.

It is an arithmetic number, because the mean of its divisors is an integer number (340213139).

Almost surely, 2^1166445044 is an apocalyptic number.

It is an amenable number.

1166445044 is a deficient number, since it is larger than the sum of its proper divisors (874833790).

1166445044 is a wasteful number, since it uses less digits than its factorization.

1166445044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291611265 (or 291611263 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 1166445044 is about 34153.2581754655. The cubic root of 1166445044 is about 1052.6599359377.

The spelling of 1166445044 in words is "one billion, one hundred sixty-six million, four hundred forty-five thousand, forty-four".