61606611115505 has 8 divisors (see below), whose sum is σ = 73928522414400. Its totient is φ = 49284896175216.

The previous prime is 61606611115499. The next prime is 61606611115513. The reversal of 61606611115505 is 50551111660616.

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-61606611115505 is a prime.

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, 48398525 + ... + 49655114.

It is an arithmetic number, because the mean of its divisors is an integer number (9241065301800).

Almost surely, 2^{61606611115505} is an apocalyptic number.

It is an amenable number.

61606611115505 is a deficient number, since it is larger than the sum of its proper divisors (12321911298895).

61606611115505 is a wasteful number, since it uses less digits than its factorization.

61606611115505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98179303.

The product of its (nonzero) digits is 162000, while the sum is 44.

The spelling of 61606611115505 in words is "sixty-one trillion, six hundred six billion, six hundred eleven million, one hundred fifteen thousand, five hundred five".