61111005565650 has 48 divisors (see below), whose sum is σ = 154124027618400. Its totient is φ = 16020060213760.

The previous prime is 61111005565567. The next prime is 61111005565651. The reversal of 61111005565650 is 5656550011116.

61111005565650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (61111005565651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3452590335 + ... + 3452608034.

It is an arithmetic number, because the mean of its divisors is an integer number (3210917242050).

Almost surely, 2^{61111005565650} is an apocalyptic number.

61111005565650 is an abundant number, since it is smaller than the sum of its proper divisors (93013022052750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61111005565650 is a wasteful number, since it uses less digits than its factorization.

61111005565650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6905198443 (or 6905198438 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 42.

Adding to 61111005565650 its reverse (5656550011116), we get a palindrome (66767555576766).

The spelling of 61111005565650 in words is "sixty-one trillion, one hundred eleven billion, five million, five hundred sixty-five thousand, six hundred fifty".