16031732785157 has 2 divisors, whose sum is σ = 16031732785158. Its totient is φ = 16031732785156.

The previous prime is 16031732785127. The next prime is 16031732785199. The reversal of 16031732785157 is 75158723713061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8909234007556 + 7122498777601 = 2984834^2 + 2668801^2 .

It is an emirp because it is prime and its reverse (75158723713061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16031732785157 - 2¹⁶ = 16031732719621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16031732785127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8015866392578 + 8015866392579.

It is an arithmetic number, because the mean of its divisors is an integer number (8015866392579).

Almost surely, 2^{16031732785157} is an apocalyptic number.

It is an amenable number.

16031732785157 is a deficient number, since it is larger than the sum of its proper divisors (1).

16031732785157 is an equidigital number, since it uses as much as digits as its factorization.

16031732785157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7408800, while the sum is 56.

The spelling of 16031732785157 in words is "sixteen trillion, thirty-one billion, seven hundred thirty-two million, seven hundred eighty-five thousand, one hundred fifty-seven".