1188992166 has 32 divisors (see below), whose sum is σ = 2456706048. Its totient is φ = 383231520.

The previous prime is 1188992159. The next prime is 1188992173. The reversal of 1188992166 is 6612998811.

It is an interprime number because it is at equal distance from previous prime (1188992159) and next prime (1188992173).

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, 357885 + ... + 361191.

It is an arithmetic number, because the mean of its divisors is an integer number (76772064).

Almost surely, 2^1188992166 is an apocalyptic number.

1188992166 is an abundant number, since it is smaller than the sum of its proper divisors (1267713882).

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

1188992166 is a wasteful number, since it uses less digits than its factorization.

1188992166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5276.

The product of its digits is 373248, while the sum is 51.

The square root of 1188992166 is about 34481.7657030495. The cubic root of 1188992166 is about 1059.3992579160.

The spelling of 1188992166 in words is "one billion, one hundred eighty-eight million, nine hundred ninety-two thousand, one hundred sixty-six".