655065023 has 12 divisors (see below), whose sum is σ = 670098840. Its totient is φ = 640352016.

The previous prime is 655065017. The next prime is 655065043. The reversal of 655065023 is 320560556.

It is not a de Polignac number, because 655065023 - 2¹⁶ = 654999487 is a prime.

It is a super-2 number, since 2×655065023² = 858220368715981058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655065013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 789773 + ... + 790601.

It is an arithmetic number, because the mean of its divisors is an integer number (55841570).

Almost surely, 2^655065023 is an apocalyptic number.

655065023 is a deficient number, since it is larger than the sum of its proper divisors (15033817).

655065023 is an equidigital number, since it uses as much as digits as its factorization.

655065023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174 (or 1115 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 32.

The square root of 655065023 is about 25594.2380820371. The cubic root of 655065023 is about 868.4832969905.

The spelling of 655065023 in words is "six hundred fifty-five million, sixty-five thousand, twenty-three".