32016224381 has 2 divisors, whose sum is σ = 32016224382. Its totient is φ = 32016224380.

The previous prime is 32016224333. The next prime is 32016224407. The reversal of 32016224381 is 18342261023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24200780356 + 7815444025 = 155566^2 + 88405^2 .

It is an emirp because it is prime and its reverse (18342261023) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32016224381 is a prime.

It is a super-2 number, since 2×32016224381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32016224881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16008112190 + 16008112191.

It is an arithmetic number, because the mean of its divisors is an integer number (16008112191).

Almost surely, 2^32016224381 is an apocalyptic number.

It is an amenable number.

32016224381 is a deficient number, since it is larger than the sum of its proper divisors (1).

32016224381 is an equidigital number, since it uses as much as digits as its factorization.

32016224381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 32016224381 in words is "thirty-two billion, sixteen million, two hundred twenty-four thousand, three hundred eighty-one".