665412363 has 24 divisors (see below), whose sum is σ = 1198319616. Its totient is φ = 345668400.

The previous prime is 665412361. The next prime is 665412383. The reversal of 665412363 is 363214566.

665412363 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 665412363 - 2¹ = 665412361 is a prime.

It is a super-2 number, since 2×665412363² = 885547225666487538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (665412361) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 479403 + ... + 480788.

It is an arithmetic number, because the mean of its divisors is an integer number (49929984).

Almost surely, 2^665412363 is an apocalyptic number.

665412363 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

665412363 is a deficient number, since it is larger than the sum of its proper divisors (532907253).

665412363 is a wasteful number, since it uses less digits than its factorization.

665412363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960215 (or 960212 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 665412363 is about 25795.5880529985. The cubic root of 665412363 is about 873.0322531905.

The spelling of 665412363 in words is "six hundred sixty-five million, four hundred twelve thousand, three hundred sixty-three".