16556747224677 has 32 divisors (see below), whose sum is σ = 25011324685440. Its totient is φ = 9653493611520.

The previous prime is 16556747224663. The next prime is 16556747224687. The reversal of 16556747224677 is 77642274765561.

It is a de Polignac number, because none of the positive numbers 2^k-16556747224677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16556747224687) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76071048 + ... + 76288385.

It is an arithmetic number, because the mean of its divisors is an integer number (781603896420).

Almost surely, 2^{16556747224677} is an apocalyptic number.

It is an amenable number.

16556747224677 is a deficient number, since it is larger than the sum of its proper divisors (8454577460763).

16556747224677 is a wasteful number, since it uses less digits than its factorization.

16556747224677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152359573.

The product of its digits is 829785600, while the sum is 69.

The spelling of 16556747224677 in words is "sixteen trillion, five hundred fifty-six billion, seven hundred forty-seven million, two hundred twenty-four thousand, six hundred seventy-seven".