501561063305 has 16 divisors (see below), whose sum is σ = 607437811200. Its totient is φ = 397539679680.

The previous prime is 501561063277. The next prime is 501561063307. The reversal of 501561063305 is 503360165105.

It is a happy number.

It is not a de Polignac number, because 501561063305 - 2²² = 501556869001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (501561063307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11440016 + ... + 11483774.

It is an arithmetic number, because the mean of its divisors is an integer number (37964863200).

Almost surely, 2^501561063305 is an apocalyptic number.

It is an amenable number.

501561063305 is a deficient number, since it is larger than the sum of its proper divisors (105876747895).

501561063305 is a wasteful number, since it uses less digits than its factorization.

501561063305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64904.

The product of its (nonzero) digits is 40500, while the sum is 35.

The spelling of 501561063305 in words is "five hundred one billion, five hundred sixty-one million, sixty-three thousand, three hundred five".