5665061655594 has 192 divisors, whose sum is σ = 13975034830848. Its totient is φ = 1642968835200.

The previous prime is 5665061655587. The next prime is 5665061655601. The reversal of 5665061655594 is 4955561605665.

It is a happy number.

5665061655594 is a `hidden beast` number, since 5 + 6 + 6 + 5 + 0 + 616 + 5 + 5 + 5 + 9 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (5665061655587) and next prime (5665061655601).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 503868937 + ... + 503880179.

It is an arithmetic number, because the mean of its divisors is an integer number (72786639744).

Almost surely, 2^{5665061655594} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5665061655594, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6987517415424).

5665061655594 is an abundant number, since it is smaller than the sum of its proper divisors (8309973175254).

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

5665061655594 is a wasteful number, since it uses less digits than its factorization.

5665061655594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12193 (or 12190 counting only the distinct ones).

The product of its (nonzero) digits is 145800000, while the sum is 63.

The spelling of 5665061655594 in words is "five trillion, six hundred sixty-five billion, sixty-one million, six hundred fifty-five thousand, five hundred ninety-four".