16543466065 has 16 divisors (see below), whose sum is σ = 22813539840. Its totient is φ = 11281412160.

The previous prime is 16543466053. The next prime is 16543466081. The reversal of 16543466065 is 56066434561.

It is a happy number.

It is not a de Polignac number, because 16543466065 - 2¹³ = 16543457873 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1299385 + ... + 1312054.

It is an arithmetic number, because the mean of its divisors is an integer number (1425846240).

Almost surely, 2^16543466065 is an apocalyptic number.

It is an amenable number.

16543466065 is a deficient number, since it is larger than the sum of its proper divisors (6270073775).

16543466065 is a wasteful number, since it uses less digits than its factorization.

16543466065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2611632.

The product of its (nonzero) digits is 1555200, while the sum is 46.

The spelling of 16543466065 in words is "sixteen billion, five hundred forty-three million, four hundred sixty-six thousand, sixty-five".