2661351161313 has 8 divisors (see below), whose sum is σ = 3821427308608. Its totient is φ = 1637754560784.

The previous prime is 2661351161299. The next prime is 2661351161317. The reversal of 2661351161313 is 3131611531662.

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

It is not a de Polignac number, because 2661351161313 - 2⁴ = 2661351161297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 68239773367 = 2661351161313 / (2 + 6 + 6 + 1 + 3 + 5 + 1 + 1 + 6 + 1 + 3 + 1 + 3).

It is not an unprimeable number, because it can be changed into a prime (2661351161317) 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, 34119886645 + ... + 34119886722.

It is an arithmetic number, because the mean of its divisors is an integer number (477678413576).

Almost surely, 2^{2661351161313} is an apocalyptic number.

It is an amenable number.

2661351161313 is a deficient number, since it is larger than the sum of its proper divisors (1160076147295).

2661351161313 is a wasteful number, since it uses less digits than its factorization.

2661351161313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68239773383.

The product of its digits is 58320, while the sum is 39.

Adding to 2661351161313 its reverse (3131611531662), we get a palindrome (5792962692975).

The spelling of 2661351161313 in words is "two trillion, six hundred sixty-one billion, three hundred fifty-one million, one hundred sixty-one thousand, three hundred thirteen".