6240081386221 has 8 divisors (see below), whose sum is σ = 6419024438400. Its totient is φ = 6062411950560.

The previous prime is 6240081386191. The next prime is 6240081386237. The reversal of 6240081386221 is 1226831800426.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6240081386221 - 2¹³ = 6240081378029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6240081386251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318394191 + ... + 318413788.

It is an arithmetic number, because the mean of its divisors is an integer number (802378054800).

Almost surely, 2^{6240081386221} is an apocalyptic number.

It is an amenable number.

6240081386221 is a deficient number, since it is larger than the sum of its proper divisors (178943052179).

6240081386221 is a wasteful number, since it uses less digits than its factorization.

6240081386221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636808259.

The product of its (nonzero) digits is 221184, while the sum is 43.

The spelling of 6240081386221 in words is "six trillion, two hundred forty billion, eighty-one million, three hundred eighty-six thousand, two hundred twenty-one".