465665620 has 36 divisors (see below), whose sum is σ = 1137556980. Its totient is φ = 159656448.

The previous prime is 465665597. The next prime is 465665621. The reversal of 465665620 is 26566564.

It can be written as a sum of positive squares in 2 ways, for example, as 304781764 + 160883856 = 17458^2 + 12684^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (465665621) 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, 236605 + ... + 238564.

It is an arithmetic number, because the mean of its divisors is an integer number (31598805).

Almost surely, 2^465665620 is an apocalyptic number.

It is an amenable number.

465665620 is an abundant number, since it is smaller than the sum of its proper divisors (671891360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

465665620 is a wasteful number, since it uses less digits than its factorization.

465665620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475192 (or 475183 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The square root of 465665620 is about 21579.2868278820. The cubic root of 465665620 is about 775.1005738364.

The spelling of 465665620 in words is "four hundred sixty-five million, six hundred sixty-five thousand, six hundred twenty".