3261514661661 has 8 divisors (see below), whose sum is σ = 4348702201600. Its totient is φ = 2174335114752.

The previous prime is 3261514661651. The next prime is 3261514661683. The reversal of 3261514661661 is 1661664151623.

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

It is not a de Polignac number, because 3261514661661 - 2¹³ = 3261514653469 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3261514661661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3261514661651) 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, 970660 + ... + 2732253.

It is an arithmetic number, because the mean of its divisors is an integer number (543587775200).

Almost surely, 2^{3261514661661} is an apocalyptic number.

It is an amenable number.

3261514661661 is a deficient number, since it is larger than the sum of its proper divisors (1087187539939).

3261514661661 is a wasteful number, since it uses less digits than its factorization.

3261514661661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3996515.

The product of its digits is 933120, while the sum is 48.

The spelling of 3261514661661 in words is "three trillion, two hundred sixty-one billion, five hundred fourteen million, six hundred sixty-one thousand, six hundred sixty-one".