18209600976161 has 32 divisors (see below), whose sum is σ = 21037518028800. Its totient is φ = 15438686034816.

The previous prime is 18209600976103. The next prime is 18209600976173. The reversal of 18209600976161 is 16167900690281.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18209600976161 is a prime.

It is a super-2 number, since 2×18209600976161² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18209600976097 and 18209600976106.

It is not an unprimeable number, because it can be changed into a prime (18209600975161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3113281565 + ... + 3113287413.

It is an arithmetic number, because the mean of its divisors is an integer number (657422438400).

Almost surely, 2^{18209600976161} is an apocalyptic number.

It is an amenable number.

18209600976161 is a deficient number, since it is larger than the sum of its proper divisors (2827917052639).

18209600976161 is a wasteful number, since it uses less digits than its factorization.

18209600976161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10253.

The product of its (nonzero) digits is 1959552, while the sum is 56.

The spelling of 18209600976161 in words is "eighteen trillion, two hundred nine billion, six hundred million, nine hundred seventy-six thousand, one hundred sixty-one".