61050561116551 has 4 divisors (see below), whose sum is σ = 61387857034504. Its totient is φ = 60713265198600.

The previous prime is 61050561116527. The next prime is 61050561116593. The reversal of 61050561116551 is 15561116505016.

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 61050561116551 - 2¹¹ = 61050561114503 is a prime.

It is a super-2 number, since 2×61050561116551² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61050561116498 and 61050561116507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61150561116551) 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, 168647958705 + ... + 168647959066.

It is an arithmetic number, because the mean of its divisors is an integer number (15346964258626).

Almost surely, 2^{61050561116551} is an apocalyptic number.

61050561116551 is a deficient number, since it is larger than the sum of its proper divisors (337295917953).

61050561116551 is a wasteful number, since it uses less digits than its factorization.

61050561116551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337295917952.

The product of its (nonzero) digits is 135000, while the sum is 43.

The spelling of 61050561116551 in words is "sixty-one trillion, fifty billion, five hundred sixty-one million, one hundred sixteen thousand, five hundred fifty-one".