1641090299904 has 576 divisors, whose sum is σ = 5285382036480. Its totient is φ = 486396395520.

The previous prime is 1641090299861. The next prime is 1641090299929. The reversal of 1641090299904 is 4099920901461.

1641090299904 is a `hidden beast` number, since 164 + 109 + 0 + 299 + 90 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1901610577 + ... + 1901611439.

It is an arithmetic number, because the mean of its divisors is an integer number (9176010480).

Almost surely, 2^{1641090299904} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1641090299904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2642691018240).

1641090299904 is an abundant number, since it is smaller than the sum of its proper divisors (3644291736576).

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

1641090299904 is a wasteful number, since it uses less digits than its factorization.

1641090299904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098 (or 1075 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 54.

The spelling of 1641090299904 in words is "one trillion, six hundred forty-one billion, ninety million, two hundred ninety-nine thousand, nine hundred four".