320564560561046 has 8 divisors (see below), whose sum is σ = 497427766387920. Its totient is φ = 154755305098408.

The previous prime is 320564560561039. The next prime is 320564560561123. The reversal of 320564560561046 is 640165065465023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×320564560561046² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2763487590986 + ... + 2763487591101.

It is an arithmetic number, because the mean of its divisors is an integer number (62178470798490).

Almost surely, 2^{320564560561046} is an apocalyptic number.

320564560561046 is a deficient number, since it is larger than the sum of its proper divisors (176863205826874).

320564560561046 is a wasteful number, since it uses less digits than its factorization.

320564560561046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5526975182118.

The product of its (nonzero) digits is 15552000, while the sum is 53.

The spelling of 320564560561046 in words is "three hundred twenty trillion, five hundred sixty-four billion, five hundred sixty million, five hundred sixty-one thousand, forty-six".