655399722379 has 2 divisors, whose sum is σ = 655399722380. Its totient is φ = 655399722378.

The previous prime is 655399722349. The next prime is 655399722391. The reversal of 655399722379 is 973227993556.

655399722379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 655399722379 - 2⁵ = 655399722347 is a prime.

It is not a weakly prime, because it can be changed into another prime (655399722349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327699861189 + 327699861190.

It is an arithmetic number, because the mean of its divisors is an integer number (327699861190).

Almost surely, 2^655399722379 is an apocalyptic number.

655399722379 is a deficient number, since it is larger than the sum of its proper divisors (1).

655399722379 is an equidigital number, since it uses as much as digits as its factorization.

655399722379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192893400, while the sum is 67.

The spelling of 655399722379 in words is "six hundred fifty-five billion, three hundred ninety-nine million, seven hundred twenty-two thousand, three hundred seventy-nine".