505736045665400 has 48 divisors (see below), whose sum is σ = 1282730515829640. Its totient is φ = 183904016604800.

The previous prime is 505736045665337. The next prime is 505736045665441. The reversal of 505736045665400 is 4566540637505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114940008179 + ... + 114940012578.

Almost surely, 2^{505736045665400} is an apocalyptic number.

505736045665400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

505736045665400 is an abundant number, since it is smaller than the sum of its proper divisors (776994470164240).

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

505736045665400 is a wasteful number, since it uses less digits than its factorization.

505736045665400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229880020784 (or 229880020775 counting only the distinct ones).

The product of its (nonzero) digits is 45360000, while the sum is 56.

The spelling of 505736045665400 in words is "five hundred five trillion, seven hundred thirty-six billion, forty-five million, six hundred sixty-five thousand, four hundred".