60555050505561 has 4 divisors (see below), whose sum is σ = 80740067340752. Its totient is φ = 40370033670372.

The previous prime is 60555050505529. The next prime is 60555050505571. The reversal of 60555050505561 is 16550505055506.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 60555050505561 - 2⁵ = 60555050505529 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 60555050505561.

It is not an unprimeable number, because it can be changed into a prime (60555050505571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10092508417591 + ... + 10092508417596.

It is an arithmetic number, because the mean of its divisors is an integer number (20185016835188).

Almost surely, 2^{60555050505561} is an apocalyptic number.

It is an amenable number.

60555050505561 is a deficient number, since it is larger than the sum of its proper divisors (20185016835191).

60555050505561 is a wasteful number, since it uses less digits than its factorization.

60555050505561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20185016835190.

The product of its (nonzero) digits is 2812500, while the sum is 48.

The spelling of 60555050505561 in words is "sixty trillion, five hundred fifty-five billion, fifty million, five hundred five thousand, five hundred sixty-one".