61197616 has 20 divisors (see below), whose sum is σ = 120809232. Its totient is φ = 30021056.

The previous prime is 61197607. The next prime is 61197649. The reversal of 61197616 is 61679116.

61197616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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, 35236 + ... + 36931.

Almost surely, 2^61197616 is an apocalyptic number.

It is an amenable number.

61197616 is a deficient number, since it is larger than the sum of its proper divisors (59611616).

61197616 is a wasteful number, since it uses less digits than its factorization.

61197616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72228 (or 72222 counting only the distinct ones).

The product of its digits is 13608, while the sum is 37.

The square root of 61197616 is about 7822.8905143815. The cubic root of 61197616 is about 394.0743501627.

The spelling of 61197616 in words is "sixty-one million, one hundred ninety-seven thousand, six hundred sixteen".