540664446320 has 80 divisors (see below), whose sum is σ = 1388857803840. Its totient is φ = 194694500352.

The previous prime is 540664446307. The next prime is 540664446359. The reversal of 540664446320 is 23644466045.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8611055 + ... + 8673614.

It is an arithmetic number, because the mean of its divisors is an integer number (17360722548).

Almost surely, 2^540664446320 is an apocalyptic number.

It is an amenable number.

540664446320 is an abundant number, since it is smaller than the sum of its proper divisors (848193357520).

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

540664446320 is a wasteful number, since it uses less digits than its factorization.

540664446320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17284722 (or 17284716 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 44.

The spelling of 540664446320 in words is "five hundred forty billion, six hundred sixty-four million, four hundred forty-six thousand, three hundred twenty".