16557656614454 has 16 divisors (see below), whose sum is σ = 24897961202400. Its totient is φ = 8258337436224.

The previous prime is 16557656614423. The next prime is 16557656614459. The reversal of 16557656614454 is 45441665675561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16557656614459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28472204 + ... + 29047920.

It is an arithmetic number, because the mean of its divisors is an integer number (1556122575150).

Almost surely, 2^{16557656614454} is an apocalyptic number.

16557656614454 is a deficient number, since it is larger than the sum of its proper divisors (8340304587946).

16557656614454 is a wasteful number, since it uses less digits than its factorization.

16557656614454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611287.

The product of its digits is 362880000, while the sum is 65.

The spelling of 16557656614454 in words is "sixteen trillion, five hundred fifty-seven billion, six hundred fifty-six million, six hundred fourteen thousand, four hundred fifty-four".