1166671392 has 96 divisors (see below), whose sum is σ = 3177921600. Its totient is φ = 374320128.

The previous prime is 1166671381. The next prime is 1166671409. The reversal of 1166671392 is 2931766611.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×1166671392² = 2722244273822435328, which contains 22 as substring.

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, 1722958 + ... + 1723634.

It is an arithmetic number, because the mean of its divisors is an integer number (33103350).

Almost surely, 2^1166671392 is an apocalyptic number.

1166671392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1166671392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1588960800).

1166671392 is an abundant number, since it is smaller than the sum of its proper divisors (2011250208).

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

1166671392 is a wasteful number, since it uses less digits than its factorization.

1166671392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338 (or 1330 counting only the distinct ones).

The product of its digits is 81648, while the sum is 42.

The square root of 1166671392 is about 34156.5717249258. The cubic root of 1166671392 is about 1052.7280208886.

The spelling of 1166671392 in words is "one billion, one hundred sixty-six million, six hundred seventy-one thousand, three hundred ninety-two".