16353720340 has 12 divisors (see below), whose sum is σ = 34342812756. Its totient is φ = 6541488128.

The previous prime is 16353720293. The next prime is 16353720347. The reversal of 16353720340 is 4302735361.

16353720340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11117171844 + 5236548496 = 105438^2 + 72364^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16353720296 and 16353720305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16353720347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408842989 + ... + 408843028.

It is an arithmetic number, because the mean of its divisors is an integer number (2861901063).

Almost surely, 2^16353720340 is an apocalyptic number.

16353720340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16353720340 is an abundant number, since it is smaller than the sum of its proper divisors (17989092416).

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

16353720340 is a wasteful number, since it uses less digits than its factorization.

16353720340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817686026 (or 817686024 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 34.

The spelling of 16353720340 in words is "sixteen billion, three hundred fifty-three million, seven hundred twenty thousand, three hundred forty".