1166550434 has 16 divisors (see below), whose sum is σ = 2042350848. Its totient is φ = 489312672.

The previous prime is 1166550431. The next prime is 1166550443. The reversal of 1166550434 is 4340556611.

It is a junction number, because it is equal to n+sod(n) for n = 1166550394 and 1166550403.

It is not an unprimeable number, because it can be changed into a prime (1166550431) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 885779 + ... + 887094.

It is an arithmetic number, because the mean of its divisors is an integer number (127646928).

Almost surely, 2^1166550434 is an apocalyptic number.

1166550434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1166550434 is a deficient number, since it is larger than the sum of its proper divisors (875800414).

1166550434 is a wasteful number, since it uses less digits than its factorization.

1166550434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1772929.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 1166550434 is about 34154.8010387998. The cubic root of 1166550434 is about 1052.6916380998.

The spelling of 1166550434 in words is "one billion, one hundred sixty-six million, five hundred fifty thousand, four hundred thirty-four".