16309980536864 has 144 divisors (see below), whose sum is σ = 38690956946880. Its totient is φ = 6611476193280.

The previous prime is 16309980536833. The next prime is 16309980536891. The reversal of 16309980536864 is 46863508990361.

It is a super-2 number, since 2×16309980536864² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16309980536794 and 16309980536803.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1927661594 + ... + 1927670054.

It is an arithmetic number, because the mean of its divisors is an integer number (268687201020).

Almost surely, 2^{16309980536864} is an apocalyptic number.

16309980536864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16309980536864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19345478473440).

16309980536864 is an abundant number, since it is smaller than the sum of its proper divisors (22380976410016).

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

16309980536864 is an frugal number, since it uses more digits than its factorization.

16309980536864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9843 (or 9162 counting only the distinct ones).

The product of its (nonzero) digits is 201553920, while the sum is 68.

The spelling of 16309980536864 in words is "sixteen trillion, three hundred nine billion, nine hundred eighty million, five hundred thirty-six thousand, eight hundred sixty-four".