15941081492640 has 288 divisors, whose sum is σ = 57077747266176. Its totient is φ = 4043664599040.

The previous prime is 15941081492603. The next prime is 15941081492669. The reversal of 15941081492640 is 4629418014951.

15941081492640 is a `hidden beast` number, since 1 + 5 + 9 + 4 + 10 + 81 + 492 + 64 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4665127 + ... + 7324313.

It is an arithmetic number, because the mean of its divisors is an integer number (198186622452).

Almost surely, 2^{15941081492640} is an apocalyptic number.

15941081492640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15941081492640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28538873633088).

15941081492640 is an abundant number, since it is smaller than the sum of its proper divisors (41136665773536).

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

15941081492640 is a wasteful number, since it uses less digits than its factorization.

15941081492640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2659412 (or 2659401 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The spelling of 15941081492640 in words is "fifteen trillion, nine hundred forty-one billion, eighty-one million, four hundred ninety-two thousand, six hundred forty".