1166376280 has 64 divisors (see below), whose sum is σ = 2660364000. Its totient is φ = 460185600.

The previous prime is 1166376221. The next prime is 1166376287. The reversal of 1166376280 is 826736611.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166376287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1813639 + ... + 1814281.

Almost surely, 2^1166376280 is an apocalyptic number.

1166376280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1166376280 is an abundant number, since it is smaller than the sum of its proper divisors (1493987720).

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

1166376280 is a wasteful number, since it uses less digits than its factorization.

1166376280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204 (or 1200 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 1166376280 is about 34152.2514631173. The cubic root of 1166376280 is about 1052.6392501423.

The spelling of 1166376280 in words is "one billion, one hundred sixty-six million, three hundred seventy-six thousand, two hundred eighty".