3261161711 has 4 divisors (see below), whose sum is σ = 3271581072. Its totient is φ = 3250742352.

The previous prime is 3261161707. The next prime is 3261161801. The reversal of 3261161711 is 1171611623.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 3261161711 - 2² = 3261161707 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 (3260161711) 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, 5209211 + ... + 5209836.

It is an arithmetic number, because the mean of its divisors is an integer number (817895268).

Almost surely, 2^3261161711 is an apocalyptic number.

3261161711 is a deficient number, since it is larger than the sum of its proper divisors (10419361).

3261161711 is a wasteful number, since it uses less digits than its factorization.

3261161711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10419360.

The product of its digits is 1512, while the sum is 29.

The square root of 3261161711 is about 57106.5820286944. The cubic root of 3261161711 is about 1482.9418158836.

The spelling of 3261161711 in words is "three billion, two hundred sixty-one million, one hundred sixty-one thousand, seven hundred eleven".