1166425507 has 4 divisors (see below), whose sum is σ = 1256150560. Its totient is φ = 1076700456.

The previous prime is 1166425489. The next prime is 1166425517. The reversal of 1166425507 is 7055246611.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1166425507 - 2¹¹ = 1166423459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1166425517) 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, 44862507 + ... + 44862532.

It is an arithmetic number, because the mean of its divisors is an integer number (314037640).

Almost surely, 2^1166425507 is an apocalyptic number.

1166425507 is a deficient number, since it is larger than the sum of its proper divisors (89725053).

1166425507 is an equidigital number, since it uses as much as digits as its factorization.

1166425507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89725052.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 1166425507 is about 34152.9721547042. The cubic root of 1166425507 is about 1052.6540588407.

The spelling of 1166425507 in words is "one billion, one hundred sixty-six million, four hundred twenty-five thousand, five hundred seven".