61111916 has 6 divisors (see below), whose sum is σ = 106945860. Its totient is φ = 30555956.

The previous prime is 61111913. The next prime is 61111927. The reversal of 61111916 is 61911116.

It is not an unprimeable number, because it can be changed into a prime (61111913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7638986 + ... + 7638993.

It is an arithmetic number, because the mean of its divisors is an integer number (17824310).

Almost surely, 2^61111916 is an apocalyptic number.

It is an amenable number.

61111916 is a deficient number, since it is larger than the sum of its proper divisors (45833944).

61111916 is a wasteful number, since it uses less digits than its factorization.

61111916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15277983 (or 15277981 counting only the distinct ones).

The product of its digits is 324, while the sum is 26.

The square root of 61111916 is about 7817.4110804025. The cubic root of 61111916 is about 393.8903127718.

The spelling of 61111916 in words is "sixty-one million, one hundred eleven thousand, nine hundred sixteen".