655362804091 has 2 divisors, whose sum is σ = 655362804092. Its totient is φ = 655362804090.

The previous prime is 655362804079. The next prime is 655362804139. The reversal of 655362804091 is 190408263556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 655362804091 - 2¹¹ = 655362802043 is a prime.

It is not a weakly prime, because it can be changed into another prime (655362804491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327681402045 + 327681402046.

It is an arithmetic number, because the mean of its divisors is an integer number (327681402046).

Almost surely, 2^655362804091 is an apocalyptic number.

655362804091 is a deficient number, since it is larger than the sum of its proper divisors (1).

655362804091 is an equidigital number, since it uses as much as digits as its factorization.

655362804091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1555200, while the sum is 49.

The spelling of 655362804091 in words is "six hundred fifty-five billion, three hundred sixty-two million, eight hundred four thousand, ninety-one".