16441679520 has 432 divisors, whose sum is σ = 66797771040. Its totient is φ = 3670023168.

The previous prime is 16441679497. The next prime is 16441679537. The reversal of 16441679520 is 2597614461.

16441679520 is a `hidden beast` number, since 1 + 6 + 44 + 16 + 79 + 520 = 666.

It is a super-3 number, since 3×16441679520³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3031371 + ... + 3036789.

It is an arithmetic number, because the mean of its divisors is an integer number (154624470).

Almost surely, 2^16441679520 is an apocalyptic number.

16441679520 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 16441679520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33398885520).

16441679520 is an abundant number, since it is smaller than the sum of its proper divisors (50356091520).

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

16441679520 is a wasteful number, since it uses less digits than its factorization.

16441679520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5497 (or 5479 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 16441679520 in words is "sixteen billion, four hundred forty-one million, six hundred seventy-nine thousand, five hundred twenty".