16533561047475 has 24 divisors (see below), whose sum is σ = 28523987062272. Its totient is φ = 8434512301600.

The previous prime is 16533561047417. The next prime is 16533561047527. The reversal of 16533561047475 is 57474016533561.

It is not a de Polignac number, because 16533561047475 - 2¹⁶ = 16533560981939 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4792334811 + ... + 4792338260.

It is an arithmetic number, because the mean of its divisors is an integer number (1188499460928).

Almost surely, 2^{16533561047475} is an apocalyptic number.

16533561047475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16533561047475 is a deficient number, since it is larger than the sum of its proper divisors (11990426014797).

16533561047475 is a wasteful number, since it uses less digits than its factorization.

16533561047475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9584673107 (or 9584673102 counting only the distinct ones).

The product of its (nonzero) digits is 31752000, while the sum is 57.

The spelling of 16533561047475 in words is "sixteen trillion, five hundred thirty-three billion, five hundred sixty-one million, forty-seven thousand, four hundred seventy-five".