16564354654 has 16 divisors (see below), whose sum is σ = 25206007680. Its totient is φ = 8162829400.

The previous prime is 16564354649. The next prime is 16564354661. The reversal of 16564354654 is 45645346561.

It is a junction number, because it is equal to n+sod(n) for n = 16564354598 and 16564354607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49522 + ... + 188629.

It is an arithmetic number, because the mean of its divisors is an integer number (1575375480).

Almost surely, 2^16564354654 is an apocalyptic number.

16564354654 is a deficient number, since it is larger than the sum of its proper divisors (8641653026).

16564354654 is a wasteful number, since it uses less digits than its factorization.

16564354654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238655.

The product of its digits is 5184000, while the sum is 49.

The spelling of 16564354654 in words is "sixteen billion, five hundred sixty-four million, three hundred fifty-four thousand, six hundred fifty-four".