64606012256231 has 2 divisors, whose sum is σ = 64606012256232. Its totient is φ = 64606012256230.

The previous prime is 64606012256167. The next prime is 64606012256297. The reversal of 64606012256231 is 13265221060646.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64606012256231 - 2⁶ = 64606012256167 is a prime.

It is a super-3 number, since 3×64606012256231³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64606012255231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32303006128115 + 32303006128116.

It is an arithmetic number, because the mean of its divisors is an integer number (32303006128116).

Almost surely, 2^{64606012256231} is an apocalyptic number.

64606012256231 is a deficient number, since it is larger than the sum of its proper divisors (1).

64606012256231 is an equidigital number, since it uses as much as digits as its factorization.

64606012256231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 44.

The spelling of 64606012256231 in words is "sixty-four trillion, six hundred six billion, twelve million, two hundred fifty-six thousand, two hundred thirty-one".