16240638535 has 16 divisors (see below), whose sum is σ = 21779023392. Its totient is φ = 11523289600.

The previous prime is 16240638529. The next prime is 16240638539. The reversal of 16240638535 is 53583604261.

It is not a de Polignac number, because 16240638535 - 2³ = 16240638527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16240638491 and 16240638500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16240638539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3598774 + ... + 3603283.

It is an arithmetic number, because the mean of its divisors is an integer number (1361188962).

Almost surely, 2^16240638535 is an apocalyptic number.

16240638535 is a deficient number, since it is larger than the sum of its proper divisors (5538384857).

16240638535 is a wasteful number, since it uses less digits than its factorization.

16240638535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7202114.

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 16240638535 in words is "sixteen billion, two hundred forty million, six hundred thirty-eight thousand, five hundred thirty-five".