16726162157 has 4 divisors (see below), whose sum is σ = 16955287740. Its totient is φ = 16497036576.

The previous prime is 16726162129. The next prime is 16726162163. The reversal of 16726162157 is 75126162761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75126162761 = 13 ⋅5778935597.

It can be written as a sum of positive squares in 2 ways, for example, as 6331544041 + 10394618116 = 79571^2 + 101954^2 .

It is a cyclic number.

It is not a de Polignac number, because 16726162157 - 2¹⁴ = 16726145773 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 (16726164157) 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, 114562682 + ... + 114562827.

It is an arithmetic number, because the mean of its divisors is an integer number (4238821935).

Almost surely, 2^16726162157 is an apocalyptic number.

It is an amenable number.

16726162157 is a deficient number, since it is larger than the sum of its proper divisors (229125583).

16726162157 is an equidigital number, since it uses as much as digits as its factorization.

16726162157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229125582.

The product of its digits is 211680, while the sum is 44.

The spelling of 16726162157 in words is "sixteen billion, seven hundred twenty-six million, one hundred sixty-two thousand, one hundred fifty-seven".