320135543450 has 12 divisors (see below), whose sum is σ = 595452110910. Its totient is φ = 128054217360.

The previous prime is 320135543437. The next prime is 320135543461. The reversal of 320135543450 is 54345531023.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 234291817369 + 85843726081 = 484037^2 + 292991^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 320135543450.

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 5 ways as a sum of consecutive naturals, for example, 3201355385 + ... + 3201355484.

Almost surely, 2^320135543450 is an apocalyptic number.

320135543450 is a deficient number, since it is larger than the sum of its proper divisors (275316567460).

320135543450 is a wasteful number, since it uses less digits than its factorization.

320135543450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6402710881 (or 6402710876 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 35.

The spelling of 320135543450 in words is "three hundred twenty billion, one hundred thirty-five million, five hundred forty-three thousand, four hundred fifty".