16452161280 has 432 divisors, whose sum is σ = 61344331776. Its totient is φ = 4059095040.

The previous prime is 16452161233. The next prime is 16452161291. The reversal of 16452161280 is 8216125461.

It is a happy number.

16452161280 is a `hidden beast` number, since 1 + 6 + 4 + 521 + 6 + 128 + 0 = 666.

It is a super-2 number, since 2×16452161280² (a number of 21 digits) contains 22 as substring.

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 47 ways as a sum of consecutive naturals, for example, 8212759 + ... + 8214761.

It is an arithmetic number, because the mean of its divisors is an integer number (142000768).

Almost surely, 2^16452161280 is an apocalyptic number.

16452161280 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 16452161280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30672165888).

16452161280 is an abundant number, since it is smaller than the sum of its proper divisors (44892170496).

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

16452161280 is a wasteful number, since it uses less digits than its factorization.

16452161280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2084 (or 2067 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 16452161280 in words is "sixteen billion, four hundred fifty-two million, one hundred sixty-one thousand, two hundred eighty".