16521161134 has 8 divisors (see below), whose sum is σ = 24782874048. Its totient is φ = 8260203120.

The previous prime is 16521161131. The next prime is 16521161147. The reversal of 16521161134 is 43116112561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 16521161096 and 16521161105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16521161131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130407 + ... + 223714.

It is an arithmetic number, because the mean of its divisors is an integer number (3097859256).

Almost surely, 2^16521161134 is an apocalyptic number.

16521161134 is a deficient number, since it is larger than the sum of its proper divisors (8261712914).

16521161134 is a wasteful number, since it uses less digits than its factorization.

16521161134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377450.

The product of its digits is 4320, while the sum is 31.

Adding to 16521161134 its reverse (43116112561), we get a palindrome (59637273695).

The spelling of 16521161134 in words is "sixteen billion, five hundred twenty-one million, one hundred sixty-one thousand, one hundred thirty-four".