60556166065581 has 8 divisors (see below), whose sum is σ = 81187640692704. Its totient is φ = 40147734407760.

The previous prime is 60556166065573. The next prime is 60556166065651. The reversal of 60556166065581 is 18556066165506.

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

It is not a de Polignac number, because 60556166065581 - 2³ = 60556166065573 is a prime.

It is a super-2 number, since 2×60556166065581² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60556166065501) 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, 55760741691 + ... + 55760742776.

It is an arithmetic number, because the mean of its divisors is an integer number (10148455086588).

Almost surely, 2^{60556166065581} is an apocalyptic number.

It is an amenable number.

60556166065581 is a deficient number, since it is larger than the sum of its proper divisors (20631474627123).

60556166065581 is a wasteful number, since it uses less digits than its factorization.

60556166065581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111521484651.

The product of its (nonzero) digits is 38880000, while the sum is 60.

The spelling of 60556166065581 in words is "sixty trillion, five hundred fifty-six billion, one hundred sixty-six million, sixty-five thousand, five hundred eighty-one".