16390241280 has 1056 divisors, whose sum is σ = 71274902400. Its totient is φ = 3468165120.

The previous prime is 16390241249. The next prime is 16390241323. The reversal of 16390241280 is 8214209361.

16390241280 is a `hidden beast` number, since 1 + 6 + 390 + 241 + 28 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 268692450 + ... + 268692510.

Almost surely, 2^16390241280 is an apocalyptic number.

16390241280 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 16390241280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35637451200).

16390241280 is an abundant number, since it is smaller than the sum of its proper divisors (54884661120).

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

16390241280 is a wasteful number, since it uses less digits than its factorization.

16390241280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 16390241280 in words is "sixteen billion, three hundred ninety million, two hundred forty-one thousand, two hundred eighty".