2045542204420 has 96 divisors (see below), whose sum is σ = 5163988072320. Its totient is φ = 670647720960.

The previous prime is 2045542204403. The next prime is 2045542204423. The reversal of 2045542204420 is 244022455402.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2045542204423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8193585 + ... + 8439544.

It is an arithmetic number, because the mean of its divisors is an integer number (53791542420).

Almost surely, 2^{2045542204420} is an apocalyptic number.

2045542204420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2045542204420 is an abundant number, since it is smaller than the sum of its proper divisors (3118445867900).

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

2045542204420 is a wasteful number, since it uses less digits than its factorization.

2045542204420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16633205 (or 16633203 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 34.

Adding to 2045542204420 its reverse (244022455402), we get a palindrome (2289564659822).

The spelling of 2045542204420 in words is "two trillion, forty-five billion, five hundred forty-two million, two hundred four thousand, four hundred twenty".