18060680561 has 16 divisors (see below), whose sum is σ = 23040872448. Its totient is φ = 13745970000.

The previous prime is 18060680483. The next prime is 18060680579. The reversal of 18060680561 is 16508606081.

It is a happy number.

It is not a de Polignac number, because 18060680561 - 2¹⁴ = 18060664177 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18060680161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2724065 + ... + 2730686.

It is an arithmetic number, because the mean of its divisors is an integer number (1440054528).

Almost surely, 2^18060680561 is an apocalyptic number.

18060680561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18060680561 is a deficient number, since it is larger than the sum of its proper divisors (4980191887).

18060680561 is a wasteful number, since it uses less digits than its factorization.

18060680561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5454812.

The product of its (nonzero) digits is 69120, while the sum is 41.

The spelling of 18060680561 in words is "eighteen billion, sixty million, six hundred eighty thousand, five hundred sixty-one".