16533064420 has 12 divisors (see below), whose sum is σ = 34719435324. Its totient is φ = 6613225760.

The previous prime is 16533064403. The next prime is 16533064487. The reversal of 16533064420 is 2446033561.

It can be written as a sum of positive squares in 2 ways, for example, as 5240601664 + 11292462756 = 72392^2 + 106266^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413326591 + ... + 413326630.

It is an arithmetic number, because the mean of its divisors is an integer number (2893286277).

Almost surely, 2^16533064420 is an apocalyptic number.

16533064420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16533064420 is an abundant number, since it is smaller than the sum of its proper divisors (18186370904).

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

16533064420 is a wasteful number, since it uses less digits than its factorization.

16533064420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826653230 (or 826653228 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 16533064420 its reverse (2446033561), we get a palindrome (18979097981).

The spelling of 16533064420 in words is "sixteen billion, five hundred thirty-three million, sixty-four thousand, four hundred twenty".