6541640461456 has 10 divisors (see below), whose sum is σ = 12674428394102. Its totient is φ = 3270820230720.

The previous prime is 6541640461409. The next prime is 6541640461463.

6541640461456 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 6329672301456 + 211968160000 = 2515884^2 + 460400^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204426264405 + ... + 204426264436.

Almost surely, 2^{6541640461456} is an apocalyptic number.

It is an amenable number.

6541640461456 is a deficient number, since it is larger than the sum of its proper divisors (6132787932646).

6541640461456 is a wasteful number, since it uses less digits than its factorization.

6541640461456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408852528849 (or 408852528843 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 52.

The spelling of 6541640461456 in words is "six trillion, five hundred forty-one billion, six hundred forty million, four hundred sixty-one thousand, four hundred fifty-six".