16803158381 has 2 divisors, whose sum is σ = 16803158382. Its totient is φ = 16803158380.

The previous prime is 16803158357. The next prime is 16803158401. The reversal of 16803158381 is 18385130861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16715904100 + 87254281 = 129290^2 + 9341^2 .

It is an emirp because it is prime and its reverse (18385130861) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16803158381 is a prime.

It is a super-2 number, since 2×16803158381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16803158311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8401579190 + 8401579191.

It is an arithmetic number, because the mean of its divisors is an integer number (8401579191).

Almost surely, 2^16803158381 is an apocalyptic number.

It is an amenable number.

16803158381 is a deficient number, since it is larger than the sum of its proper divisors (1).

16803158381 is an equidigital number, since it uses as much as digits as its factorization.

16803158381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 44.

The spelling of 16803158381 in words is "sixteen billion, eight hundred three million, one hundred fifty-eight thousand, three hundred eighty-one".