1546561226400 has 72 divisors (see below), whose sum is σ = 5034056799744. Its totient is φ = 412416326400.

The previous prime is 1546561226323. The next prime is 1546561226401. The reversal of 1546561226400 is 46221656451.

It is not an unprimeable number, because it can be changed into a prime (1546561226401) 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 11 ways as a sum of consecutive naturals, for example, 322197856 + ... + 322202655.

It is an arithmetic number, because the mean of its divisors is an integer number (69917455552).

Almost surely, 2^{1546561226400} is an apocalyptic number.

1546561226400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1546561226400 is an abundant number, since it is smaller than the sum of its proper divisors (3487495573344).

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

1546561226400 is a wasteful number, since it uses less digits than its factorization.

1546561226400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644400534 (or 644400521 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 1546561226400 in words is "one trillion, five hundred forty-six billion, five hundred sixty-one million, two hundred twenty-six thousand, four hundred".