60115566561 has 4 divisors (see below), whose sum is σ = 80154088752. Its totient is φ = 40077044372.

The previous prime is 60115566547. The next prime is 60115566587. The reversal of 60115566561 is 16566551106.

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 a cyclic number.

It is not a de Polignac number, because 60115566561 - 2¹³ = 60115558369 is a prime.

It is a super-2 number, since 2×60115566561² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (60115566521) 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, 10019261091 + ... + 10019261096.

It is an arithmetic number, because the mean of its divisors is an integer number (20038522188).

Almost surely, 2^60115566561 is an apocalyptic number.

It is an amenable number.

60115566561 is a deficient number, since it is larger than the sum of its proper divisors (20038522191).

60115566561 is a wasteful number, since it uses less digits than its factorization.

60115566561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20038522190.

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 60115566561 in words is "sixty billion, one hundred fifteen million, five hundred sixty-six thousand, five hundred sixty-one".