61663336 has 32 divisors (see below), whose sum is σ = 132387840. Its totient is φ = 26376768.

The previous prime is 61663331. The next prime is 61663361. The reversal of 61663336 is 63336616.

61663336 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (61663331) 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 7 ways as a sum of consecutive naturals, for example, 56185 + ... + 57271.

It is an arithmetic number, because the mean of its divisors is an integer number (4137120).

Almost surely, 2^61663336 is an apocalyptic number.

It is an amenable number.

61663336 is an abundant number, since it is smaller than the sum of its proper divisors (70724504).

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

61663336 is a wasteful number, since it uses less digits than its factorization.

61663336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113 (or 2109 counting only the distinct ones).

The product of its digits is 34992, while the sum is 34.

The square root of 61663336 is about 7852.6005883401. The cubic root of 61663336 is about 395.0714734735.

The spelling of 61663336 in words is "sixty-one million, six hundred sixty-three thousand, three hundred thirty-six".