56466299266409 has 2 divisors, whose sum is σ = 56466299266410. Its totient is φ = 56466299266408.

The previous prime is 56466299266379. The next prime is 56466299266453. The reversal of 56466299266409 is 90466299266465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56264700960400 + 201598306009 = 7500980^2 + 448997^2 .

It is a cyclic number.

It is not a de Polignac number, because 56466299266409 - 2³⁶ = 56397579789673 is a prime.

It is not a weakly prime, because it can be changed into another prime (56466299266009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28233149633204 + 28233149633205.

It is an arithmetic number, because the mean of its divisors is an integer number (28233149633205).

Almost surely, 2^{56466299266409} is an apocalyptic number.

It is an amenable number.

56466299266409 is a deficient number, since it is larger than the sum of its proper divisors (1).

56466299266409 is an equidigital number, since it uses as much as digits as its factorization.

56466299266409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1813985280, while the sum is 74.

The spelling of 56466299266409 in words is "fifty-six trillion, four hundred sixty-six billion, two hundred ninety-nine million, two hundred sixty-six thousand, four hundred nine".