16535424663 has 24 divisors (see below), whose sum is σ = 25320846096. Its totient is φ = 10362297600.

The previous prime is 16535424623. The next prime is 16535424677. The reversal of 16535424663 is 36642453561.

16535424663 is a `hidden beast` number, since 1 + 6 + 5 + 3 + 542 + 46 + 63 = 666.

It is not a de Polignac number, because 16535424663 - 2⁸ = 16535424407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16535424613) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57453 + ... + 190713.

It is an arithmetic number, because the mean of its divisors is an integer number (1055035254).

Almost surely, 2^16535424663 is an apocalyptic number.

16535424663 is a deficient number, since it is larger than the sum of its proper divisors (8785421433).

16535424663 is a wasteful number, since it uses less digits than its factorization.

16535424663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134095 (or 134092 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 45.

The spelling of 16535424663 in words is "sixteen billion, five hundred thirty-five million, four hundred twenty-four thousand, six hundred sixty-three".