40432535600221 has 2 divisors, whose sum is σ = 40432535600222. Its totient is φ = 40432535600220.

The previous prime is 40432535600183. The next prime is 40432535600231. The reversal of 40432535600221 is 12200653523404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40432366236025 + 169364196 = 6358645^2 + 13014^2 .

It is a cyclic number.

It is not a de Polignac number, because 40432535600221 - 2¹⁵ = 40432535567453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40432535600231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20216267800110 + 20216267800111.

It is an arithmetic number, because the mean of its divisors is an integer number (20216267800111).

Almost surely, 2^{40432535600221} is an apocalyptic number.

It is an amenable number.

40432535600221 is a deficient number, since it is larger than the sum of its proper divisors (1).

40432535600221 is an equidigital number, since it uses as much as digits as its factorization.

40432535600221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 37.

The spelling of 40432535600221 in words is "forty trillion, four hundred thirty-two billion, five hundred thirty-five million, six hundred thousand, two hundred twenty-one".