61608066 has 16 divisors (see below), whose sum is σ = 132694464. Its totient is φ = 18956304.

The previous prime is 61608047. The next prime is 61608077. The reversal of 61608066 is 66080616.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394846 + ... + 395001.

It is an arithmetic number, because the mean of its divisors is an integer number (8293404).

Almost surely, 2^61608066 is an apocalyptic number.

61608066 is an abundant number, since it is smaller than the sum of its proper divisors (71086398).

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

61608066 is a wasteful number, since it uses less digits than its factorization.

61608066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789865.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 61608066 is about 7849.0805831002. The cubic root of 61608066 is about 394.9534015424.

The spelling of 61608066 in words is "sixty-one million, six hundred eight thousand, sixty-six".