5665857241815 has 12 divisors (see below), whose sum is σ = 9820819219224. Its totient is φ = 3021790528944.

The previous prime is 5665857241757. The next prime is 5665857241817. The reversal of 5665857241815 is 5181427585665.

5665857241815 is a `hidden beast` number, since 5 + 6 + 6 + 5 + 8 + 572 + 41 + 8 + 15 = 666.

It is not a de Polignac number, because 5665857241815 - 2¹³ = 5665857233623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5665857241817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62953969309 + ... + 62953969398.

It is an arithmetic number, because the mean of its divisors is an integer number (818401601602).

Almost surely, 2^{5665857241815} is an apocalyptic number.

5665857241815 is a deficient number, since it is larger than the sum of its proper divisors (4154961977409).

5665857241815 is a wasteful number, since it uses less digits than its factorization.

5665857241815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125907938718 (or 125907938715 counting only the distinct ones).

The product of its digits is 80640000, while the sum is 63.

The spelling of 5665857241815 in words is "five trillion, six hundred sixty-five billion, eight hundred fifty-seven million, two hundred forty-one thousand, eight hundred fifteen".