1166640601 has 8 divisors (see below), whose sum is σ = 1335128384. Its totient is φ = 998609040.

The previous prime is 1166640593. The next prime is 1166640619. The reversal of 1166640601 is 1060466611.

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 1166640601 - 2³ = 1166640593 is a prime.

It is a super-2 number, since 2×1166640601² = 2722100583803282402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1166640301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108555 + ... + 118816.

It is an arithmetic number, because the mean of its divisors is an integer number (166891048).

Almost surely, 2^1166640601 is an apocalyptic number.

It is an amenable number.

1166640601 is a deficient number, since it is larger than the sum of its proper divisors (168487783).

1166640601 is an equidigital number, since it uses as much as digits as its factorization.

1166640601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228111.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1166640601 is about 34156.1209887774. The cubic root of 1166640601 is about 1052.7187595451.

The spelling of 1166640601 in words is "one billion, one hundred sixty-six million, six hundred forty thousand, six hundred one".