16655975478554 has 8 divisors (see below), whose sum is σ = 25095998928000. Its totient is φ = 8290642502556.

The previous prime is 16655975478553. The next prime is 16655975478563. The reversal of 16655975478554 is 45587457955661.

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

It is not an unprimeable number, because it can be changed into a prime (16655975478553) 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, 18672617804 + ... + 18672618695.

It is an arithmetic number, because the mean of its divisors is an integer number (3136999866000).

Almost surely, 2^{16655975478554} is an apocalyptic number.

16655975478554 is a deficient number, since it is larger than the sum of its proper divisors (8440023449446).

16655975478554 is a wasteful number, since it uses less digits than its factorization.

16655975478554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37345236724.

The product of its digits is 6350400000, while the sum is 77.

The spelling of 16655975478554 in words is "sixteen trillion, six hundred fifty-five billion, nine hundred seventy-five million, four hundred seventy-eight thousand, five hundred fifty-four".