505545660015 has 16 divisors (see below), whose sum is σ = 882406970496. Its totient is φ = 245113047200.

The previous prime is 505545659963. The next prime is 505545660157. The reversal of 505545660015 is 510066545505.

It is not a de Polignac number, because 505545660015 - 2⁶ = 505545659951 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1531956381 + ... + 1531956710.

It is an arithmetic number, because the mean of its divisors is an integer number (55150435656).

Almost surely, 2^505545660015 is an apocalyptic number.

505545660015 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

505545660015 is a deficient number, since it is larger than the sum of its proper divisors (376861310481).

505545660015 is a wasteful number, since it uses less digits than its factorization.

505545660015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3063913110.

The product of its (nonzero) digits is 450000, while the sum is 42.

The spelling of 505545660015 in words is "five hundred five billion, five hundred forty-five million, six hundred sixty thousand, fifteen".