16655477357207 has 4 divisors (see below), whose sum is σ = 17936667923160. Its totient is φ = 15374286791256.

The previous prime is 16655477357171. The next prime is 16655477357237. The reversal of 16655477357207 is 70275377455661.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16655477357207 - 2¹⁰ = 16655477356183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16655477357237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640595282957 + ... + 640595282982.

It is an arithmetic number, because the mean of its divisors is an integer number (4484166980790).

Almost surely, 2^{16655477357207} is an apocalyptic number.

16655477357207 is a deficient number, since it is larger than the sum of its proper divisors (1281190565953).

16655477357207 is a wasteful number, since it uses less digits than its factorization.

16655477357207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281190565952.

The product of its (nonzero) digits is 259308000, while the sum is 65.

The spelling of 16655477357207 in words is "sixteen trillion, six hundred fifty-five billion, four hundred seventy-seven million, three hundred fifty-seven thousand, two hundred seven".