16413534643 has 32 divisors (see below), whose sum is σ = 19003295232. Its totient is φ = 14029804800.

The previous prime is 16413534589. The next prime is 16413534659. The reversal of 16413534643 is 34643531461.

It is a de Polignac number, because none of the positive numbers 2^k-16413534643 is a prime.

It is a super-2 number, since 2×16413534643² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16413534596 and 16413534605.

It is not an unprimeable number, because it can be changed into a prime (16413534143) 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, 12424423 + ... + 12425743.

It is an arithmetic number, because the mean of its divisors is an integer number (593852976).

Almost surely, 2^16413534643 is an apocalyptic number.

16413534643 is a deficient number, since it is larger than the sum of its proper divisors (2589760589).

16413534643 is a wasteful number, since it uses less digits than its factorization.

16413534643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2155.

The product of its digits is 311040, while the sum is 40.

The spelling of 16413534643 in words is "sixteen billion, four hundred thirteen million, five hundred thirty-four thousand, six hundred forty-three".