16523446450 has 48 divisors (see below), whose sum is σ = 35568794880. Its totient is φ = 5593461120.

The previous prime is 16523446441. The next prime is 16523446453. The reversal of 16523446450 is 5464432561.

It is not an unprimeable number, because it can be changed into a prime (16523446453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 271147 + ... + 326446.

It is an arithmetic number, because the mean of its divisors is an integer number (741016560).

Almost surely, 2^16523446450 is an apocalyptic number.

16523446450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16523446450 is an abundant number, since it is smaller than the sum of its proper divisors (19045348430).

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

16523446450 is a wasteful number, since it uses less digits than its factorization.

16523446450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597691 (or 597686 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 16523446450 in words is "sixteen billion, five hundred twenty-three million, four hundred forty-six thousand, four hundred fifty".