540256645040 has 80 divisors (see below), whose sum is σ = 1437936537600. Its totient is φ = 184921501440.

The previous prime is 540256645031. The next prime is 540256645069. The reversal of 540256645040 is 40546652045.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469856 + ... + 1140735.

It is an arithmetic number, because the mean of its divisors is an integer number (17974206720).

Almost surely, 2^540256645040 is an apocalyptic number.

It is an amenable number.

540256645040 is an abundant number, since it is smaller than the sum of its proper divisors (897679892560).

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

540256645040 is a wasteful number, since it uses less digits than its factorization.

540256645040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1611210 (or 1611204 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 41.

The spelling of 540256645040 in words is "five hundred forty billion, two hundred fifty-six million, six hundred forty-five thousand, forty".