16604255534 has 32 divisors (see below), whose sum is σ = 26668258560. Its totient is φ = 7730553600.

The previous prime is 16604255431. The next prime is 16604255539. The reversal of 16604255534 is 43555240661.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 16604255491 and 16604255500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16604255539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 883742 + ... + 902334.

It is an arithmetic number, because the mean of its divisors is an integer number (833383080).

Almost surely, 2^16604255534 is an apocalyptic number.

16604255534 is a deficient number, since it is larger than the sum of its proper divisors (10064003026).

16604255534 is a wasteful number, since it uses less digits than its factorization.

16604255534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19016.

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 16604255534 in words is "sixteen billion, six hundred four million, two hundred fifty-five thousand, five hundred thirty-four".