505463503442646 has 64 divisors (see below), whose sum is σ = 1159365779260416. Its totient is φ = 143915810227200.

The previous prime is 505463503442581. The next prime is 505463503442647. The reversal of 505463503442646 is 646244305364505.

It is a super-2 number, since 2×505463503442646² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505463503442647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44443026 + ... + 54645306.

It is an arithmetic number, because the mean of its divisors is an integer number (18115090300944).

Almost surely, 2^{505463503442646} is an apocalyptic number.

505463503442646 is an abundant number, since it is smaller than the sum of its proper divisors (653902275817770).

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

505463503442646 is a wasteful number, since it uses less digits than its factorization.

505463503442646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10206397.

The product of its (nonzero) digits is 124416000, while the sum is 57.

The spelling of 505463503442646 in words is "five hundred five trillion, four hundred sixty-three billion, five hundred three million, four hundred forty-two thousand, six hundred forty-six".