16353209540 has 24 divisors (see below), whose sum is σ = 34345052952. Its totient is φ = 6540652800.

The previous prime is 16353209531. The next prime is 16353209549. The reversal of 16353209540 is 4590235361.

It is an interprime number because it is at equal distance from previous prime (16353209531) and next prime (16353209549).

It can be written as a sum of positive squares in 4 ways, for example, as 882327616 + 15470881924 = 29704^2 + 124382^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16353209494 and 16353209503.

It is not an unprimeable number, because it can be changed into a prime (16353209549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212240 + ... + 278840.

It is an arithmetic number, because the mean of its divisors is an integer number (1431043873).

Almost surely, 2^16353209540 is an apocalyptic number.

16353209540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16353209540 is an abundant number, since it is smaller than the sum of its proper divisors (17991843412).

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

16353209540 is a wasteful number, since it uses less digits than its factorization.

16353209540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78887 (or 78885 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 38.

The spelling of 16353209540 in words is "sixteen billion, three hundred fifty-three million, two hundred nine thousand, five hundred forty".