16235635452 has 24 divisors (see below), whose sum is σ = 37895066496. Its totient is φ = 5410176048.

The previous prime is 16235635441. The next prime is 16235635453. The reversal of 16235635452 is 25453653261.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16235635453) 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 7 ways as a sum of consecutive naturals, for example, 172768 + ... + 249639.

It is an arithmetic number, because the mean of its divisors is an integer number (1578961104).

Almost surely, 2^16235635452 is an apocalyptic number.

16235635452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16235635452 is an abundant number, since it is smaller than the sum of its proper divisors (21659431044).

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

16235635452 is a wasteful number, since it uses less digits than its factorization.

16235635452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425617 (or 425615 counting only the distinct ones).

The product of its digits is 648000, while the sum is 42.

The spelling of 16235635452 in words is "sixteen billion, two hundred thirty-five million, six hundred thirty-five thousand, four hundred fifty-two".