61612066 has 16 divisors (see below), whose sum is σ = 98691840. Its totient is φ = 28783440.

The previous prime is 61612039. The next prime is 61612081. The reversal of 61612066 is 66021616.

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, 15336 + ... + 18931.

It is an arithmetic number, because the mean of its divisors is an integer number (6168240).

Almost surely, 2^61612066 is an apocalyptic number.

61612066 is a deficient number, since it is larger than the sum of its proper divisors (37079774).

61612066 is a wasteful number, since it uses less digits than its factorization.

61612066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34329.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 61612066 is about 7849.3353858782. The cubic root of 61612066 is about 394.9619490131.

The spelling of 61612066 in words is "sixty-one million, six hundred twelve thousand, sixty-six".