16551588480 has 512 divisors, whose sum is σ = 63129024000. Its totient is φ = 3684925440.

The previous prime is 16551588461. The next prime is 16551588511. The reversal of 16551588480 is 8488515561.

It is a super-2 number, since 2×16551588480² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27000654 + ... + 27001266.

It is an arithmetic number, because the mean of its divisors is an integer number (123298875).

Almost surely, 2^16551588480 is an apocalyptic number.

16551588480 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 16551588480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31564512000).

16551588480 is an abundant number, since it is smaller than the sum of its proper divisors (46577435520).

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

16551588480 is an equidigital number, since it uses as much as digits as its factorization.

16551588480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697 (or 671 counting only the distinct ones).

The product of its (nonzero) digits is 1536000, while the sum is 51.

The spelling of 16551588480 in words is "sixteen billion, five hundred fifty-one million, five hundred eighty-eight thousand, four hundred eighty".