2161133415342 has 64 divisors (see below), whose sum is σ = 5280364339200. Its totient is φ = 649732285440.

The previous prime is 2161133415341. The next prime is 2161133415367. The reversal of 2161133415342 is 2435143311612.

2161133415342 is a `hidden beast` number, since 2 + 1 + 6 + 113 + 3 + 4 + 1 + 534 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2161133415297 and 2161133415306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2161133415341) 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, 14248467 + ... + 14399342.

It is an arithmetic number, because the mean of its divisors is an integer number (82505692800).

Almost surely, 2^{2161133415342} is an apocalyptic number.

2161133415342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2161133415342 is an abundant number, since it is smaller than the sum of its proper divisors (3119230923858).

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

2161133415342 is a wasteful number, since it uses less digits than its factorization.

2161133415342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28647958 (or 28647952 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

Adding to 2161133415342 its reverse (2435143311612), we get a palindrome (4596276726954).

The spelling of 2161133415342 in words is "two trillion, one hundred sixty-one billion, one hundred thirty-three million, four hundred fifteen thousand, three hundred forty-two".