5655738518640 has 240 divisors, whose sum is σ = 22455789969600. Its totient is φ = 1248162951168.

The previous prime is 5655738518609. The next prime is 5655738518657. The reversal of 5655738518640 is 468158375565.

5655738518640 is a `hidden beast` number, since 5 + 6 + 5 + 5 + 73 + 8 + 518 + 6 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19201605 + ... + 19493924.

It is an arithmetic number, because the mean of its divisors is an integer number (93565791540).

Almost surely, 2^{5655738518640} is an apocalyptic number.

It is an amenable number.

5655738518640 is an abundant number, since it is smaller than the sum of its proper divisors (16800051450960).

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

5655738518640 is a wasteful number, since it uses less digits than its factorization.

5655738518640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38695584 (or 38695575 counting only the distinct ones).

The product of its (nonzero) digits is 120960000, while the sum is 63.

The spelling of 5655738518640 in words is "five trillion, six hundred fifty-five billion, seven hundred thirty-eight million, five hundred eighteen thousand, six hundred forty".