64403520011 has 2 divisors, whose sum is σ = 64403520012. Its totient is φ = 64403520010.

The previous prime is 64403520007. The next prime is 64403520029. The reversal of 64403520011 is 11002530446.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64403520011 - 2² = 64403520007 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (64403520061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32201760005 + 32201760006.

It is an arithmetic number, because the mean of its divisors is an integer number (32201760006).

Almost surely, 2^64403520011 is an apocalyptic number.

64403520011 is a deficient number, since it is larger than the sum of its proper divisors (1).

64403520011 is an equidigital number, since it uses as much as digits as its factorization.

64403520011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 26.

The spelling of 64403520011 in words is "sixty-four billion, four hundred three million, five hundred twenty thousand, eleven".