655372442477 has 2 divisors, whose sum is σ = 655372442478. Its totient is φ = 655372442476.

The previous prime is 655372442467. The next prime is 655372442503. The reversal of 655372442477 is 774244273556.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 538482986596 + 116889455881 = 733814^2 + 341891^2 .

It is a cyclic number.

It is not a de Polignac number, because 655372442477 - 2¹⁶ = 655372376941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (655372442407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327686221238 + 327686221239.

It is an arithmetic number, because the mean of its divisors is an integer number (327686221239).

Almost surely, 2^655372442477 is an apocalyptic number.

It is an amenable number.

655372442477 is a deficient number, since it is larger than the sum of its proper divisors (1).

655372442477 is an equidigital number, since it uses as much as digits as its factorization.

655372442477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39513600, while the sum is 56.

The spelling of 655372442477 in words is "six hundred fifty-five billion, three hundred seventy-two million, four hundred forty-two thousand, four hundred seventy-seven".