161635079746611 has 12 divisors (see below), whose sum is σ = 234682597078488. Its totient is φ = 107198394856704.

The previous prime is 161635079746601. The next prime is 161635079746619. The reversal of 161635079746611 is 116647970536161.

161635079746611 is a `hidden beast` number, since 1 + 6 + 1 + 6 + 3 + 5 + 0 + 7 + 9 + 7 + 4 + 6 + 611 = 666.

It is not a de Polignac number, because 161635079746611 - 2³³ = 161626489812019 is a prime.

It is a super-2 number, since 2×161635079746611² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161635079746619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46527079365 + ... + 46527082838.

It is an arithmetic number, because the mean of its divisors is an integer number (19556883089874).

Almost surely, 2^{161635079746611} is an apocalyptic number.

161635079746611 is a deficient number, since it is larger than the sum of its proper divisors (73047517331877).

161635079746611 is a wasteful number, since it uses less digits than its factorization.

161635079746611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93054162402 (or 93054162399 counting only the distinct ones).

The product of its (nonzero) digits is 34292160, while the sum is 63.

The spelling of 161635079746611 in words is "one hundred sixty-one trillion, six hundred thirty-five billion, seventy-nine million, seven hundred forty-six thousand, six hundred eleven".