16038065280 has 128 divisors (see below), whose sum is σ = 51214363200. Its totient is φ = 4269035520.

The previous prime is 16038065279. The next prime is 16038065287. The reversal of 16038065280 is 8256083061.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (16038065287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1089006 + ... + 1103634.

Almost surely, 2^16038065280 is an apocalyptic number.

16038065280 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 16038065280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25607181600).

16038065280 is an abundant number, since it is smaller than the sum of its proper divisors (35176297920).

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

16038065280 is a wasteful number, since it uses less digits than its factorization.

16038065280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15222 (or 15210 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 16038065280 in words is "sixteen billion, thirty-eight million, sixty-five thousand, two hundred eighty".