1166199072 has 24 divisors (see below), whose sum is σ = 3061272816. Its totient is φ = 388732992.

The previous prime is 1166199007. The next prime is 1166199079. The reversal of 1166199072 is 2709916611.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×1166199072² = 2720040551067322368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1166199079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6073858 + ... + 6074049.

It is an arithmetic number, because the mean of its divisors is an integer number (127553034).

Almost surely, 2^1166199072 is an apocalyptic number.

1166199072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1166199072 is an abundant number, since it is smaller than the sum of its proper divisors (1895073744).

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

1166199072 is a wasteful number, since it uses less digits than its factorization.

1166199072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12147920 (or 12147912 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 42.

The square root of 1166199072 is about 34149.6569821719. The cubic root of 1166199072 is about 1052.5859381460.

The spelling of 1166199072 in words is "one billion, one hundred sixty-six million, one hundred ninety-nine thousand, seventy-two".