3591161099 has 4 divisors (see below), whose sum is σ = 3594764064. Its totient is φ = 3587558136.

The previous prime is 3591161053. The next prime is 3591161149. The reversal of 3591161099 is 9901611953.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9901611953 = 58687 ⋅168719.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3591161099 is a prime.

It is a super-3 number, since 3×3591161099³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3591161999) 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, 1799987 + ... + 1801980.

It is an arithmetic number, because the mean of its divisors is an integer number (898691016).

Almost surely, 2^3591161099 is an apocalyptic number.

3591161099 is a deficient number, since it is larger than the sum of its proper divisors (3602965).

3591161099 is an equidigital number, since it uses as much as digits as its factorization.

3591161099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3602964.

The product of its (nonzero) digits is 65610, while the sum is 44.

The square root of 3591161099 is about 59926.2972241736. The cubic root of 3591161099 is about 1531.3635158628.

The spelling of 3591161099 in words is "three billion, five hundred ninety-one million, one hundred sixty-one thousand, ninety-nine".