506165533641 has 24 divisors (see below), whose sum is σ = 740956396544. Its totient is φ = 332936866080.

The previous prime is 506165533631. The next prime is 506165533667. The reversal of 506165533641 is 146335561605.

It is a happy number.

506165533641 is a `hidden beast` number, since 5 + 0 + 61 + 6 + 553 + 36 + 4 + 1 = 666.

It is not a de Polignac number, because 506165533641 - 2¹¹ = 506165531593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506165533631) 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, 1016431 + ... + 1430196.

Almost surely, 2^506165533641 is an apocalyptic number.

It is an amenable number.

506165533641 is a deficient number, since it is larger than the sum of its proper divisors (234790862903).

506165533641 is a wasteful number, since it uses less digits than its factorization.

506165533641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2446941 (or 2446938 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 45.

The spelling of 506165533641 in words is "five hundred six billion, one hundred sixty-five million, five hundred thirty-three thousand, six hundred forty-one".