1166501501 has 8 divisors (see below), whose sum is σ = 1273363104. Its totient is φ = 1059775920.

The previous prime is 1166501489. The next prime is 1166501503. The reversal of 1166501501 is 1051056611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1166501501 - 2³⁰ = 92759677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166501503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15635 + ... + 50768.

It is an arithmetic number, because the mean of its divisors is an integer number (159170388).

Almost surely, 2^1166501501 is an apocalyptic number.

1166501501 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1166501501 is a deficient number, since it is larger than the sum of its proper divisors (106861603).

1166501501 is a wasteful number, since it uses less digits than its factorization.

1166501501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68011.

The product of its (nonzero) digits is 900, while the sum is 26.

The square root of 1166501501 is about 34154.0846898288. The cubic root of 1166501501 is about 1052.6769188961.

The spelling of 1166501501 in words is "one billion, one hundred sixty-six million, five hundred one thousand, five hundred one".