16408738485620 has 24 divisors (see below), whose sum is σ = 37108993191144. Its totient is φ = 6058611133056.

The previous prime is 16408738485569. The next prime is 16408738485631. The reversal of 16408738485620 is 2658483780461.

It can be written as a sum of positive squares in 4 ways, for example, as 928810207504 + 15479928278116 = 963748^2 + 3934454^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31555266059 + ... + 31555266578.

It is an arithmetic number, because the mean of its divisors is an integer number (1546208049631).

Almost surely, 2^{16408738485620} is an apocalyptic number.

16408738485620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16408738485620 is an abundant number, since it is smaller than the sum of its proper divisors (20700254705524).

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

16408738485620 is a wasteful number, since it uses less digits than its factorization.

16408738485620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63110532659 (or 63110532657 counting only the distinct ones).

The product of its (nonzero) digits is 61931520, while the sum is 62.

The spelling of 16408738485620 in words is "sixteen trillion, four hundred eight billion, seven hundred thirty-eight million, four hundred eighty-five thousand, six hundred twenty".