61116650 has 48 divisors (see below), whose sum is σ = 133116480. Its totient is φ = 20438400.

The previous prime is 61116647. The next prime is 61116661. The reversal of 61116650 is 5661116.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12221 + ... + 16479.

It is an arithmetic number, because the mean of its divisors is an integer number (2773260).

Almost surely, 2^61116650 is an apocalyptic number.

61116650 is an abundant number, since it is smaller than the sum of its proper divisors (71999830).

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

61116650 is a wasteful number, since it uses less digits than its factorization.

61116650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4319 (or 4314 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 61116650 is about 7817.7138602024. The cubic root of 61116650 is about 393.9004833393.

Adding to 61116650 its reverse (5661116), we get a palindrome (66777766).

The spelling of 61116650 in words is "sixty-one million, one hundred sixteen thousand, six hundred fifty".