16655566654 has 8 divisors (see below), whose sum is σ = 24985413360. Its totient is φ = 8327095536.

The previous prime is 16655566651. The next prime is 16655566661. The reversal of 16655566654 is 45666555661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 16655566595 and 16655566604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16655566651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313074 + ... + 362389.

It is an arithmetic number, because the mean of its divisors is an integer number (3123176670).

Almost surely, 2^16655566654 is an apocalyptic number.

16655566654 is a deficient number, since it is larger than the sum of its proper divisors (8329846706).

16655566654 is a wasteful number, since it uses less digits than its factorization.

16655566654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687794.

The product of its digits is 19440000, while the sum is 55.

The spelling of 16655566654 in words is "sixteen billion, six hundred fifty-five million, five hundred sixty-six thousand, six hundred fifty-four".