16281336280 has 32 divisors (see below), whose sum is σ = 39963281040. Its totient is φ = 5920485760.

The previous prime is 16281336277. The next prime is 16281336299. The reversal of 16281336280 is 8263318261.

It is a super-2 number, since 2×16281336280² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18501079 + ... + 18501958.

Almost surely, 2^16281336280 is an apocalyptic number.

16281336280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16281336280 is an abundant number, since it is smaller than the sum of its proper divisors (23681944760).

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

16281336280 is a wasteful number, since it uses less digits than its factorization.

16281336280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37003059 (or 37003055 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 16281336280 in words is "sixteen billion, two hundred eighty-one million, three hundred thirty-six thousand, two hundred eighty".