1645050841408 has 56 divisors (see below), whose sum is σ = 3700531913120. Its totient is φ = 719293478400.

The previous prime is 1645050841381. The next prime is 1645050841429. The reversal of 1645050841408 is 8041480505461.

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 7 ways as a sum of consecutive naturals, for example, 52016418 + ... + 52048033.

It is an arithmetic number, because the mean of its divisors is an integer number (66080927020).

Almost surely, 2^{1645050841408} is an apocalyptic number.

It is an amenable number.

1645050841408 is an abundant number, since it is smaller than the sum of its proper divisors (2055481071712).

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

1645050841408 is a wasteful number, since it uses less digits than its factorization.

1645050841408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104064495 (or 104064485 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 46.

The spelling of 1645050841408 in words is "one trillion, six hundred forty-five billion, fifty million, eight hundred forty-one thousand, four hundred eight".