61616605065011 has 8 divisors (see below), whose sum is σ = 61815804396144. Its totient is φ = 61417420646400.

The previous prime is 61616605064929. The next prime is 61616605065079. The reversal of 61616605065011 is 11056050661616.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61616605065011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61616605064011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4578836 + ... + 12008286.

It is an arithmetic number, because the mean of its divisors is an integer number (7726975549518).

Almost surely, 2^{61616605065011} is an apocalyptic number.

61616605065011 is a deficient number, since it is larger than the sum of its proper divisors (199199331133).

61616605065011 is a wasteful number, since it uses less digits than its factorization.

61616605065011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7456261.

The product of its (nonzero) digits is 194400, while the sum is 44.

The spelling of 61616605065011 in words is "sixty-one trillion, six hundred sixteen billion, six hundred five million, sixty-five thousand, eleven".