1167155444 has 24 divisors (see below), whose sum is σ = 2513874048. Its totient is φ = 461731680.

The previous prime is 1167155441. The next prime is 1167155461. The reversal of 1167155444 is 4445517611.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1167155398 and 1167155407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1167155441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1602872 + ... + 1603599.

It is an arithmetic number, because the mean of its divisors is an integer number (104744752).

Almost surely, 2^1167155444 is an apocalyptic number.

1167155444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1167155444 is an abundant number, since it is smaller than the sum of its proper divisors (1346718604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1167155444 is a wasteful number, since it uses less digits than its factorization.

1167155444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3206495 (or 3206493 counting only the distinct ones).

The product of its digits is 67200, while the sum is 38.

The square root of 1167155444 is about 34163.6567714874. The cubic root of 1167155444 is about 1052.8735930550.

The spelling of 1167155444 in words is "one billion, one hundred sixty-seven million, one hundred fifty-five thousand, four hundred forty-four".