20161411523 has 64 divisors (see below), whose sum is σ = 23907934080. Its totient is φ = 16829030400.

The previous prime is 20161411471. The next prime is 20161411561. The reversal of 20161411523 is 32511416102.

It is a cyclic number.

It is not a de Polignac number, because 20161411523 - 2⁸ = 20161411267 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20161411492 and 20161411501.

It is not an unprimeable number, because it can be changed into a prime (20161414523) 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 63 ways as a sum of consecutive naturals, for example, 116539865 + ... + 116540037.

It is an arithmetic number, because the mean of its divisors is an integer number (373561470).

Almost surely, 2^20161411523 is an apocalyptic number.

20161411523 is a deficient number, since it is larger than the sum of its proper divisors (3746522557).

20161411523 is a wasteful number, since it uses less digits than its factorization.

20161411523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 20161411523 its reverse (32511416102), we get a palindrome (52672827625).

The spelling of 20161411523 in words is "twenty billion, one hundred sixty-one million, four hundred eleven thousand, five hundred twenty-three".