20342010575940 has 96 divisors (see below), whose sum is σ = 58517152565760. Its totient is φ = 5276111049216.

The previous prime is 20342010575923. The next prime is 20342010575941. The reversal of 20342010575940 is 4957501024302.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20342010575892 and 20342010575901.

It is not an unprimeable number, because it can be changed into a prime (20342010575941) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 4883029 + ... + 8032931.

It is an arithmetic number, because the mean of its divisors is an integer number (609553672560).

Almost surely, 2^{20342010575940} is an apocalyptic number.

20342010575940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20342010575940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29258576282880).

20342010575940 is an abundant number, since it is smaller than the sum of its proper divisors (38175141989820).

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

20342010575940 is a wasteful number, since it uses less digits than its factorization.

20342010575940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3152861 (or 3152859 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 42.

The spelling of 20342010575940 in words is "twenty trillion, three hundred forty-two billion, ten million, five hundred seventy-five thousand, nine hundred forty".