16309455552 has 336 divisors, whose sum is σ = 52945852960. Its totient is φ = 4769114112.

The previous prime is 16309455541. The next prime is 16309455647. The reversal of 16309455552 is 25555490361.

16309455552 is a `hidden beast` number, since 1 + 6 + 3 + 0 + 94 + 5 + 5 + 552 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 16309455498 and 16309455507.

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, 379289643 + ... + 379289685.

Almost surely, 2^16309455552 is an apocalyptic number.

16309455552 is a gapful number since it is divisible by the number (12) 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 16309455552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26472926480).

16309455552 is an abundant number, since it is smaller than the sum of its proper divisors (36636397408).

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

16309455552 is an equidigital number, since it uses as much as digits as its factorization.

16309455552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 45.

The spelling of 16309455552 in words is "sixteen billion, three hundred nine million, four hundred fifty-five thousand, five hundred fifty-two".