61611116 has 12 divisors (see below), whose sum is σ = 123222288. Its totient is φ = 26404752.

The previous prime is 61611113. The next prime is 61611127. The reversal of 61611116 is 61111616.

61611116 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

61611116 is an admirable number.

It is a super-2 number, since 2×61611116² = 7591859229530912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61611091 and 61611100.

It is not an unprimeable number, because it can be changed into a prime (61611113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1100171 + ... + 1100226.

It is an arithmetic number, because the mean of its divisors is an integer number (10268524).

Almost surely, 2^61611116 is an apocalyptic number.

It is an amenable number.

61611116 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61611116 is a wasteful number, since it uses less digits than its factorization.

61611116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200408 (or 2200406 counting only the distinct ones).

The product of its digits is 216, while the sum is 23.

The square root of 61611116 is about 7849.2748709674. The cubic root of 61611116 is about 394.9599190223.

Subtracting from 61611116 its reverse (61111616), we obtain a triangular number (499500 = T₉₉₉).

The spelling of 61611116 in words is "sixty-one million, six hundred eleven thousand, one hundred sixteen".