16545376333321 has 32 divisors (see below), whose sum is σ = 18622835712000. Its totient is φ = 14567275558080.

The previous prime is 16545376333259. The next prime is 16545376333327. The reversal of 16545376333321 is 12333367354561.

It is a cyclic number.

It is not a de Polignac number, because 16545376333321 - 2²³ = 16545367944713 is a prime.

It is a super-2 number, since 2×16545376333321² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16545376333327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 235657380 + ... + 235727578.

It is an arithmetic number, because the mean of its divisors is an integer number (581963616000).

Almost surely, 2^{16545376333321} is an apocalyptic number.

16545376333321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16545376333321 is a deficient number, since it is larger than the sum of its proper divisors (2077459378679).

16545376333321 is a wasteful number, since it uses less digits than its factorization.

16545376333321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72909.

The product of its digits is 12247200, while the sum is 52.

The spelling of 16545376333321 in words is "sixteen trillion, five hundred forty-five billion, three hundred seventy-six million, three hundred thirty-three thousand, three hundred twenty-one".