16523040429 has 24 divisors (see below), whose sum is σ = 27300665600. Its totient is φ = 9433244448.

The previous prime is 16523040419. The next prime is 16523040463. The reversal of 16523040429 is 92404032561.

It is a happy number.

16523040429 is a `hidden beast` number, since 16 + 5 + 230 + 404 + 2 + 9 = 666.

It is not a de Polignac number, because 16523040429 - 2¹² = 16523036333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16523040393 and 16523040402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16523040419) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47029 + ... + 187770.

Almost surely, 2^16523040429 is an apocalyptic number.

It is an amenable number.

16523040429 is a deficient number, since it is larger than the sum of its proper divisors (10777625171).

16523040429 is a wasteful number, since it uses less digits than its factorization.

16523040429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235929 (or 235926 counting only the distinct ones).

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

The spelling of 16523040429 in words is "sixteen billion, five hundred twenty-three million, forty thousand, four hundred twenty-nine".