506297171440 has 20 divisors (see below), whose sum is σ = 1177140923784. Its totient is φ = 202518868544.

The previous prime is 506297171399. The next prime is 506297171441. The reversal of 506297171440 is 44171792605.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506297171441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3164357242 + ... + 3164357401.

Almost surely, 2^506297171440 is an apocalyptic number.

It is an amenable number.

506297171440 is an abundant number, since it is smaller than the sum of its proper divisors (670843752344).

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

506297171440 is a wasteful number, since it uses less digits than its factorization.

506297171440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6328714656 (or 6328714650 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 506297171440 in words is "five hundred six billion, two hundred ninety-seven million, one hundred seventy-one thousand, four hundred forty".