505506265720 has 16 divisors (see below), whose sum is σ = 1137389097960. Its totient is φ = 202202506272.

The previous prime is 505506265711. The next prime is 505506265721. The reversal of 505506265720 is 27562605505.

It is a super-4 number, since 4×505506265720⁴ (a number of 48 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505506265721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6318828282 + ... + 6318828361.

Almost surely, 2^505506265720 is an apocalyptic number.

It is an amenable number.

505506265720 is an abundant number, since it is smaller than the sum of its proper divisors (631882832240).

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

505506265720 is a wasteful number, since it uses less digits than its factorization.

505506265720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12637656654 (or 12637656650 counting only the distinct ones).

The product of its (nonzero) digits is 630000, while the sum is 43.

The spelling of 505506265720 in words is "five hundred five billion, five hundred six million, two hundred sixty-five thousand, seven hundred twenty".