61611066116 has 12 divisors (see below), whose sum is σ = 107923747932. Its totient is φ = 30775709568.

The previous prime is 61611066071. The next prime is 61611066119. The reversal of 61611066116 is 61166011616.

It can be written as a sum of positive squares in 2 ways, for example, as 55270129216 + 6340936900 = 235096^2 + 79630^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (61611066119) 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, 7451225 + ... + 7459488.

It is an arithmetic number, because the mean of its divisors is an integer number (8993645661).

Almost surely, 2^61611066116 is an apocalyptic number.

It is an amenable number.

61611066116 is a deficient number, since it is larger than the sum of its proper divisors (46312681816).

61611066116 is a wasteful number, since it uses less digits than its factorization.

61611066116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14911750 (or 14911748 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 35.

The spelling of 61611066116 in words is "sixty-one billion, six hundred eleven million, sixty-six thousand, one hundred sixteen".