540006644656 has 20 divisors (see below), whose sum is σ = 1046317797000. Its totient is φ = 269989148672.

The previous prime is 540006644633. The next prime is 540006644657. The reversal of 540006644656 is 656446600045.

It is not an unprimeable number, because it can be changed into a prime (540006644657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 568081 + ... + 1184368.

It is an arithmetic number, because the mean of its divisors is an integer number (52315889850).

Almost surely, 2^540006644656 is an apocalyptic number.

It is an amenable number.

540006644656 is a deficient number, since it is larger than the sum of its proper divisors (506311152344).

540006644656 is a wasteful number, since it uses less digits than its factorization.

540006644656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771716 (or 1771710 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 46.

The spelling of 540006644656 in words is "five hundred forty billion, six million, six hundred forty-four thousand, six hundred fifty-six".