16504632450 has 144 divisors (see below), whose sum is σ = 45246854016. Its totient is φ = 4312396800.

The previous prime is 16504632401. The next prime is 16504632493. The reversal of 16504632450 is 5423640561.

16504632450 is a `hidden beast` number, since 16 + 5 + 0 + 4 + 632 + 4 + 5 + 0 = 666.

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, 4494115 + ... + 4497785.

It is an arithmetic number, because the mean of its divisors is an integer number (314214264).

Almost surely, 2^16504632450 is an apocalyptic number.

16504632450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16504632450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22623427008).

16504632450 is an abundant number, since it is smaller than the sum of its proper divisors (28742221566).

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

16504632450 is a wasteful number, since it uses less digits than its factorization.

16504632450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3889 (or 3881 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 16504632450 in words is "sixteen billion, five hundred four million, six hundred thirty-two thousand, four hundred fifty".