162305440456 has 16 divisors (see below), whose sum is σ = 304607396700. Its totient is φ = 81076801344.

The previous prime is 162305440373. The next prime is 162305440477. The reversal of 162305440456 is 654044503261.

It can be written as a sum of positive squares in 2 ways, for example, as 139554544900 + 22750895556 = 373570^2 + 150834^2 .

It is a super-2 number, since 2×162305440456² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9480775 + ... + 9497878.

Almost surely, 2^162305440456 is an apocalyptic number.

It is an amenable number.

162305440456 is a deficient number, since it is larger than the sum of its proper divisors (142301956244).

162305440456 is a wasteful number, since it uses less digits than its factorization.

162305440456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18979728 (or 18979724 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 162305440456 in words is "one hundred sixty-two billion, three hundred five million, four hundred forty thousand, four hundred fifty-six".