16533605420 has 24 divisors (see below), whose sum is σ = 34729094400. Its totient is φ = 6611818752.

The previous prime is 16533605401. The next prime is 16533605443. The reversal of 16533605420 is 2450633561.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16205 + ... + 182564.

It is an arithmetic number, because the mean of its divisors is an integer number (1447045600).

Almost surely, 2^16533605420 is an apocalyptic number.

16533605420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16533605420 is an abundant number, since it is smaller than the sum of its proper divisors (18195488980).

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

16533605420 is a wasteful number, since it uses less digits than its factorization.

16533605420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202937 (or 202935 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 16533605420 in words is "sixteen billion, five hundred thirty-three million, six hundred five thousand, four hundred twenty".