16655055999 has 8 divisors (see below), whose sum is σ = 22216212480. Its totient is φ = 11098635096.

The previous prime is 16655055997. The next prime is 16655056007. The reversal of 16655055999 is 99955055661.

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

It is not a de Polignac number, because 16655055999 - 2¹ = 16655055997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16655055997) 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, 1175679 + ... + 1189760.

It is an arithmetic number, because the mean of its divisors is an integer number (2777026560).

Almost surely, 2^16655055999 is an apocalyptic number.

16655055999 is a deficient number, since it is larger than the sum of its proper divisors (5561156481).

16655055999 is a wasteful number, since it uses less digits than its factorization.

16655055999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2367789.

The product of its (nonzero) digits is 16402500, while the sum is 60.

The spelling of 16655055999 in words is "sixteen billion, six hundred fifty-five million, fifty-five thousand, nine hundred ninety-nine".