32006965981 has 2 divisors, whose sum is σ = 32006965982. Its totient is φ = 32006965980.

The previous prime is 32006965957. The next prime is 32006966009. The reversal of 32006965981 is 18956960023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22730386756 + 9276579225 = 150766^2 + 96315^2 .

It is a cyclic number.

It is not a de Polignac number, because 32006965981 - 2²¹ = 32004868829 is a prime.

It is a super-2 number, since 2×32006965981² (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 (32006965381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16003482990 + 16003482991.

It is an arithmetic number, because the mean of its divisors is an integer number (16003482991).

Almost surely, 2^32006965981 is an apocalyptic number.

It is an amenable number.

32006965981 is a deficient number, since it is larger than the sum of its proper divisors (1).

32006965981 is an equidigital number, since it uses as much as digits as its factorization.

32006965981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 699840, while the sum is 49.

The spelling of 32006965981 in words is "thirty-two billion, six million, nine hundred sixty-five thousand, nine hundred eighty-one".