16402309998336 has 216 divisors, whose sum is σ = 50078796505920. Its totient is φ = 5145307250688.

The previous prime is 16402309998329. The next prime is 16402309998341. The reversal of 16402309998336 is 63389990320461.

16402309998336 is a `hidden beast` number, since 1 + 6 + 402 + 30 + 9 + 99 + 83 + 36 = 666.

It is a super-2 number, since 2×16402309998336² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 641128201 + ... + 641153783.

It is an arithmetic number, because the mean of its divisors is an integer number (231846280120).

Almost surely, 2^{16402309998336} is an apocalyptic number.

16402309998336 is a gapful number since it is divisible by the number (16) 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 16402309998336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25039398252960).

16402309998336 is an abundant number, since it is smaller than the sum of its proper divisors (33676486507584).

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

16402309998336 is a wasteful number, since it uses less digits than its factorization.

16402309998336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41991 (or 41974 counting only the distinct ones).

The product of its (nonzero) digits is 45349632, while the sum is 63.

The spelling of 16402309998336 in words is "sixteen trillion, four hundred two billion, three hundred nine million, nine hundred ninety-eight thousand, three hundred thirty-six".