505545656466 has 32 divisors (see below), whose sum is σ = 1016355427200. Its totient is φ = 167639097600.

The previous prime is 505545656443. The next prime is 505545656467. The reversal of 505545656466 is 664656545505.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (505545656467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1496995 + ... + 1803353.

It is an arithmetic number, because the mean of its divisors is an integer number (31761107100).

Almost surely, 2^505545656466 is an apocalyptic number.

505545656466 is an abundant number, since it is smaller than the sum of its proper divisors (510809770734).

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

505545656466 is a wasteful number, since it uses less digits than its factorization.

505545656466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307794.

The product of its (nonzero) digits is 64800000, while the sum is 57.

The spelling of 505545656466 in words is "five hundred five billion, five hundred forty-five million, six hundred fifty-six thousand, four hundred sixty-six".