16028557440000 has 2640 divisors, whose sum is σ = 67666284157824. Its totient is φ = 3291217920000.

The previous prime is 16028557439971. The next prime is 16028557440013. The reversal of 16028557440000 is 4475582061.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 219569279964 + ... + 219569280036.

Almost surely, 2^{16028557440000} is an apocalyptic number.

16028557440000 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 16028557440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33833142078912).

16028557440000 is an abundant number, since it is smaller than the sum of its proper divisors (51637726717824).

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

16028557440000 is an equidigital number, since it uses as much as digits as its factorization.

16028557440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 42.

The spelling of 16028557440000 in words is "sixteen trillion, twenty-eight billion, five hundred fifty-seven million, four hundred forty thousand".