16498774656000 has 4928 divisors, whose sum is σ = 79746346068480. Its totient is φ = 3310859059200.

The previous prime is 16498774655963. The next prime is 16498774656031. The reversal of 16498774656000 is 65647789461.

It is a happy number.

16498774656000 is a `hidden beast` number, since 1 + 6 + 49 + 8 + 77 + 465 + 60 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 447 ways as a sum of consecutive naturals, for example, 246250367967 + ... + 246250368033.

Almost surely, 2^{16498774656000} is an apocalyptic number.

16498774656000 is a gapful number since it is divisible by the number (10) 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 16498774656000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39873173034240).

16498774656000 is an abundant number, since it is smaller than the sum of its proper divisors (63247571412480).

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

16498774656000 is an equidigital number, since it uses as much as digits as its factorization.

16498774656000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 63.

The spelling of 16498774656000 in words is "sixteen trillion, four hundred ninety-eight billion, seven hundred seventy-four million, six hundred fifty-six thousand".