64606464657229 has 16 divisors (see below), whose sum is σ = 71896840769664. Its totient is φ = 57554958427200.

The previous prime is 64606464657197. The next prime is 64606464657239. The reversal of 64606464657229 is 92275646460646.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 64606464657229 - 2⁵ = 64606464657197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64606464657239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66845382 + ... + 67804999.

It is an arithmetic number, because the mean of its divisors is an integer number (4493552548104).

Almost surely, 2^{64606464657229} is an apocalyptic number.

It is an amenable number.

64606464657229 is a deficient number, since it is larger than the sum of its proper divisors (7290376112435).

64606464657229 is a wasteful number, since it uses less digits than its factorization.

64606464657229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134651268.

The product of its (nonzero) digits is 627056640, while the sum is 67.

The spelling of 64606464657229 in words is "sixty-four trillion, six hundred six billion, four hundred sixty-four million, six hundred fifty-seven thousand, two hundred twenty-nine".