20164315456 has 14 divisors (see below), whose sum is σ = 40013563610. Its totient is φ = 10082157696.

The previous prime is 20164315439. The next prime is 20164315517. The reversal of 20164315456 is 65451346102.

It can be written as a sum of positive squares in only one way, i.e., 20039233600 + 125081856 = 141560^2 + 11184^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157533651 + ... + 157533778.

Almost surely, 2^20164315456 is an apocalyptic number.

It is an amenable number.

20164315456 is a deficient number, since it is larger than the sum of its proper divisors (19849248154).

20164315456 is an equidigital number, since it uses as much as digits as its factorization.

20164315456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315067441 (or 315067431 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 20164315456 in words is "twenty billion, one hundred sixty-four million, three hundred fifteen thousand, four hundred fifty-six".