16600556016157 has 4 divisors (see below), whose sum is σ = 16600591794556. Its totient is φ = 16600520237760.

The previous prime is 16600556016113. The next prime is 16600556016197. The reversal of 16600556016157 is 75161065500661.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14000273989636 + 2600282026521 = 3741694^2 + 1612539^2 .

It is a cyclic number.

It is not a de Polignac number, because 16600556016157 - 2¹⁹ = 16600555491869 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16600556016157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16600556016197) 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 3 ways as a sum of consecutive naturals, for example, 17183958 + ... + 18124279.

It is an arithmetic number, because the mean of its divisors is an integer number (4150147948639).

Almost surely, 2^{16600556016157} is an apocalyptic number.

It is an amenable number.

16600556016157 is a deficient number, since it is larger than the sum of its proper divisors (35778399).

16600556016157 is an equidigital number, since it uses as much as digits as its factorization.

16600556016157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35778398.

The product of its (nonzero) digits is 1134000, while the sum is 49.

The spelling of 16600556016157 in words is "sixteen trillion, six hundred billion, five hundred fifty-six million, sixteen thousand, one hundred fifty-seven".