161124582687 has 16 divisors (see below), whose sum is σ = 221072621280. Its totient is φ = 104307875712.

The previous prime is 161124582683. The next prime is 161124582763. The reversal of 161124582687 is 786285421161.

It is a happy number.

It is not a de Polignac number, because 161124582687 - 2² = 161124582683 is a prime.

It is a super-2 number, since 2×161124582687² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161124582683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1369408 + ... + 1482405.

It is an arithmetic number, because the mean of its divisors is an integer number (13817038830).

Almost surely, 2^161124582687 is an apocalyptic number.

161124582687 is a deficient number, since it is larger than the sum of its proper divisors (59948038593).

161124582687 is a wasteful number, since it uses less digits than its factorization.

161124582687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2852362.

The product of its digits is 1290240, while the sum is 51.

The spelling of 161124582687 in words is "one hundred sixty-one billion, one hundred twenty-four million, five hundred eighty-two thousand, six hundred eighty-seven".