6541612820408 has 16 divisors (see below), whose sum is σ = 12346752676560. Its totient is φ = 3249145440000.

The previous prime is 6541612820383. The next prime is 6541612820459. The reversal of 6541612820408 is 8040282161456.

It is a super-2 number, since 2×6541612820408² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2707619993 + ... + 2707622408.

It is an arithmetic number, because the mean of its divisors is an integer number (771672042285).

Almost surely, 2^{6541612820408} is an apocalyptic number.

It is an amenable number.

6541612820408 is a deficient number, since it is larger than the sum of its proper divisors (5805139856152).

6541612820408 is a wasteful number, since it uses less digits than its factorization.

6541612820408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5415242558 (or 5415242554 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 47.

The spelling of 6541612820408 in words is "six trillion, five hundred forty-one billion, six hundred twelve million, eight hundred twenty thousand, four hundred eight".