64223916906229 has 2 divisors, whose sum is σ = 64223916906230. Its totient is φ = 64223916906228.

The previous prime is 64223916906223. The next prime is 64223916906251. The reversal of 64223916906229 is 92260961932246.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36196707976900 + 28027208929329 = 6016370^2 + 5294073^2 .

It is a cyclic number.

It is not a de Polignac number, because 64223916906229 - 2⁵ = 64223916906197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64223916906223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32111958453114 + 32111958453115.

It is an arithmetic number, because the mean of its divisors is an integer number (32111958453115).

Almost surely, 2^{64223916906229} is an apocalyptic number.

It is an amenable number.

64223916906229 is a deficient number, since it is larger than the sum of its proper divisors (1).

64223916906229 is an equidigital number, since it uses as much as digits as its factorization.

64223916906229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30233088, while the sum is 61.

The spelling of 64223916906229 in words is "sixty-four trillion, two hundred twenty-three billion, nine hundred sixteen million, nine hundred six thousand, two hundred twenty-nine".