11605549998474 has 48 divisors (see below), whose sum is σ = 25273048444800. Its totient is φ = 3848874084000.

The previous prime is 11605549998473. The next prime is 11605549998479. The reversal of 11605549998474 is 47489994550611.

11605549998474 is a `hidden beast` number, since 1 + 1 + 6 + 0 + 5 + 5 + 499 + 98 + 47 + 4 = 666.

It is a super-2 number, since 2×11605549998474² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11605549998473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77837604 + ... + 77986560.

It is an arithmetic number, because the mean of its divisors is an integer number (526521842600).

Almost surely, 2^{11605549998474} is an apocalyptic number.

11605549998474 is an abundant number, since it is smaller than the sum of its proper divisors (13667498446326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11605549998474 is a wasteful number, since it uses less digits than its factorization.

11605549998474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170915 (or 170912 counting only the distinct ones).

The product of its (nonzero) digits is 391910400, while the sum is 72.

The spelling of 11605549998474 in words is "eleven trillion, six hundred five billion, five hundred forty-nine million, nine hundred ninety-eight thousand, four hundred seventy-four".