61610565554411 has 8 divisors (see below), whose sum is σ = 65266304780880. Its totient is φ = 57996134116128.

The previous prime is 61610565554341. The next prime is 61610565554479. The reversal of 61610565554411 is 11445556501616.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61610565554411 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 61610565554411.

It is not an unprimeable number, because it can be changed into a prime (61610565554491) 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, 10326943976 + ... + 10326949941.

It is an arithmetic number, because the mean of its divisors is an integer number (8158288097610).

Almost surely, 2^{61610565554411} is an apocalyptic number.

61610565554411 is a deficient number, since it is larger than the sum of its proper divisors (3655739226469).

61610565554411 is a wasteful number, since it uses less digits than its factorization.

61610565554411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20653894093.

The product of its (nonzero) digits is 2160000, while the sum is 50.

The spelling of 61610565554411 in words is "sixty-one trillion, six hundred ten billion, five hundred sixty-five million, five hundred fifty-four thousand, four hundred eleven".