1166558160 has 80 divisors (see below), whose sum is σ = 3773579904. Its totient is φ = 297555456.

The previous prime is 1166558153. The next prime is 1166558227. The reversal of 1166558160 is 618556611.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100147 + ... + 111186.

Almost surely, 2^1166558160 is an apocalyptic number.

1166558160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1166558160 is an abundant number, since it is smaller than the sum of its proper divisors (2607021744).

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

1166558160 is a wasteful number, since it uses less digits than its factorization.

1166558160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211372 (or 211366 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 1166558160 is about 34154.9141413062. The cubic root of 1166558160 is about 1052.6939620678.

The spelling of 1166558160 in words is "one billion, one hundred sixty-six million, five hundred fifty-eight thousand, one hundred sixty".