655691946023 has 2 divisors, whose sum is σ = 655691946024. Its totient is φ = 655691946022.

The previous prime is 655691946011. The next prime is 655691946079. The reversal of 655691946023 is 320649196556.

It is an a-pointer prime, because the next prime (655691946079) can be obtained adding 655691946023 to its sum of digits (56).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 655691946023 - 2⁶ = 655691945959 is a prime.

It is a super-3 number, since 3×655691946023³ (a number of 36 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 655691946023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (655691946223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327845973011 + 327845973012.

It is an arithmetic number, because the mean of its divisors is an integer number (327845973012).

Almost surely, 2^655691946023 is an apocalyptic number.

655691946023 is a deficient number, since it is larger than the sum of its proper divisors (1).

655691946023 is an equidigital number, since it uses as much as digits as its factorization.

655691946023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10497600, while the sum is 56.

The spelling of 655691946023 in words is "six hundred fifty-five billion, six hundred ninety-one million, nine hundred forty-six thousand, twenty-three".