1166163438 has 32 divisors (see below), whose sum is σ = 2587489920. Its totient is φ = 347392160.

The previous prime is 1166163409. The next prime is 1166163463. The reversal of 1166163438 is 8343616611.

1166163438 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1166163396 and 1166163405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145845 + ... + 153632.

It is an arithmetic number, because the mean of its divisors is an integer number (80859060).

Almost surely, 2^1166163438 is an apocalyptic number.

1166163438 is an abundant number, since it is smaller than the sum of its proper divisors (1421326482).

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

1166163438 is a wasteful number, since it uses less digits than its factorization.

1166163438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299552.

The product of its digits is 62208, while the sum is 39.

The square root of 1166163438 is about 34149.1352452738. The cubic root of 1166163438 is about 1052.5752172122.

The spelling of 1166163438 in words is "one billion, one hundred sixty-six million, one hundred sixty-three thousand, four hundred thirty-eight".