16089585297408 has 144 divisors (see below), whose sum is σ = 53108201895840. Its totient is φ = 4597024333824.

The previous prime is 16089585297407. The next prime is 16089585297449. The reversal of 16089585297408 is 80479258598061.

16089585297408 is a `hidden beast` number, since 1 + 6 + 0 + 8 + 9 + 58 + 529 + 7 + 40 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (16089585297407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62222110 + ... + 62480157.

It is an arithmetic number, because the mean of its divisors is an integer number (368806957610).

Almost surely, 2^{16089585297408} is an apocalyptic number.

16089585297408 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16089585297408 is an abundant number, since it is smaller than the sum of its proper divisors (37018616598432).

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

16089585297408 is a wasteful number, since it uses less digits than its factorization.

16089585297408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124702302 (or 124702279 counting only the distinct ones).

The product of its (nonzero) digits is 348364800, while the sum is 72.

The spelling of 16089585297408 in words is "sixteen trillion, eighty-nine billion, five hundred eighty-five million, two hundred ninety-seven thousand, four hundred eight".