16449514256320 has 56 divisors (see below), whose sum is σ = 39610522810800. Its totient is φ = 6505875290112.

The previous prime is 16449514256297. The next prime is 16449514256321. The reversal of 16449514256320 is 2365241594461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16449514256321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288762150 + ... + 288819109.

Almost surely, 2^{16449514256320} is an apocalyptic number.

16449514256320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16449514256320 is an abundant number, since it is smaller than the sum of its proper divisors (23161008554480).

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

16449514256320 is an equidigital number, since it uses as much as digits as its factorization.

16449514256320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577581365 (or 577581355 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 52.

The spelling of 16449514256320 in words is "sixteen trillion, four hundred forty-nine billion, five hundred fourteen million, two hundred fifty-six thousand, three hundred twenty".