61665065006066 has 8 divisors (see below), whose sum is σ = 92574614663004. Its totient is φ = 30806860118400.

The previous prime is 61665065005981. The next prime is 61665065006087. The reversal of 61665065006066 is 66060056056616.

It can be written as a sum of positive squares in 2 ways, for example, as 61639535677225 + 25529328841 = 7851085^2 + 159779^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 61665065005999 and 61665065006017.

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, 12836189315 + ... + 12836194118.

Almost surely, 2^{61665065006066} is an apocalyptic number.

61665065006066 is a deficient number, since it is larger than the sum of its proper divisors (30909549656938).

61665065006066 is a wasteful number, since it uses less digits than its factorization.

61665065006066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25672384636.

The product of its (nonzero) digits is 6998400, while the sum is 53.

The spelling of 61665065006066 in words is "sixty-one trillion, six hundred sixty-five billion, sixty-five million, six thousand, sixty-six".