16361200381 has 2 divisors, whose sum is σ = 16361200382. Its totient is φ = 16361200380.

The previous prime is 16361200363. The next prime is 16361200391. The reversal of 16361200381 is 18300216361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16315974756 + 45225625 = 127734^2 + 6725^2 .

It is a cyclic number.

It is not a de Polignac number, because 16361200381 - 2²³ = 16352811773 is a prime.

It is a super-2 number, since 2×16361200381² (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 (16361200391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8180600190 + 8180600191.

It is an arithmetic number, because the mean of its divisors is an integer number (8180600191).

Almost surely, 2^16361200381 is an apocalyptic number.

It is an amenable number.

16361200381 is a deficient number, since it is larger than the sum of its proper divisors (1).

16361200381 is an equidigital number, since it uses as much as digits as its factorization.

16361200381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 16361200381 in words is "sixteen billion, three hundred sixty-one million, two hundred thousand, three hundred eighty-one".