16556022074236 has 24 divisors (see below), whose sum is σ = 29439409107024. Its totient is φ = 8145767980800.

The previous prime is 16556022074213. The next prime is 16556022074237. The reversal of 16556022074236 is 63247022065561.

It is a self number, because there is not a number n which added to its sum of digits gives 16556022074236.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16556022074237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125640445 + ... + 125772148.

It is an arithmetic number, because the mean of its divisors is an integer number (1226642046126).

Almost surely, 2^{16556022074236} is an apocalyptic number.

It is an amenable number.

16556022074236 is a deficient number, since it is larger than the sum of its proper divisors (12883387032788).

16556022074236 is a wasteful number, since it uses less digits than its factorization.

16556022074236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251412861 (or 251412859 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 49.

The spelling of 16556022074236 in words is "sixteen trillion, five hundred fifty-six billion, twenty-two million, seventy-four thousand, two hundred thirty-six".