61117216 has 24 divisors (see below), whose sum is σ = 121779504. Its totient is φ = 30189120.

The previous prime is 61117171. The next prime is 61117241. The reversal of 61117216 is 61271116.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8850 + ... + 14161.

It is an arithmetic number, because the mean of its divisors is an integer number (5074146).

Almost surely, 2^61117216 is an apocalyptic number.

It is an amenable number.

61117216 is a deficient number, since it is larger than the sum of its proper divisors (60662288).

61117216 is a wasteful number, since it uses less digits than its factorization.

61117216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23104 (or 23096 counting only the distinct ones).

The product of its digits is 504, while the sum is 25.

The square root of 61117216 is about 7817.7500599597. The cubic root of 61117216 is about 393.9016993035.

The spelling of 61117216 in words is "sixty-one million, one hundred seventeen thousand, two hundred sixteen".