1554422045020 has 72 divisors (see below), whose sum is σ = 3720737568240. Its totient is φ = 543733032960.

The previous prime is 1554422045009. The next prime is 1554422045023. The reversal of 1554422045020 is 205402244551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1554422045023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12038101 + ... + 12166540.

It is an arithmetic number, because the mean of its divisors is an integer number (51676910670).

Almost surely, 2^{1554422045020} is an apocalyptic number.

1554422045020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1554422045020 is an abundant number, since it is smaller than the sum of its proper divisors (2166315523220).

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

1554422045020 is a wasteful number, since it uses less digits than its factorization.

1554422045020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24204695 (or 24204680 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 34.

Adding to 1554422045020 its reverse (205402244551), we get a palindrome (1759824289571).

The spelling of 1554422045020 in words is "one trillion, five hundred fifty-four billion, four hundred twenty-two million, forty-five thousand, twenty".