340145220020 has 48 divisors (see below), whose sum is σ = 727920224640. Its totient is φ = 133465677696.

The previous prime is 340145220011. The next prime is 340145220067. The reversal of 340145220020 is 20022541043.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 6166121 + ... + 6221039.

It is an arithmetic number, because the mean of its divisors is an integer number (15165004680).

Almost surely, 2^340145220020 is an apocalyptic number.

It is an amenable number.

340145220020 is an abundant number, since it is smaller than the sum of its proper divisors (387775004620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

340145220020 is a wasteful number, since it uses less digits than its factorization.

340145220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60824 (or 60822 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 340145220020 its reverse (20022541043), we get a palindrome (360167761063).

The spelling of 340145220020 in words is "three hundred forty billion, one hundred forty-five million, two hundred twenty thousand, twenty".