18656552723382 has 768 divisors, whose sum is σ = 54224534827008. Its totient is φ = 4510680514560.

The previous prime is 18656552723311. The next prime is 18656552723387. The reversal of 18656552723382 is 28332725565681.

18656552723382 is a `hidden beast` number, since 1 + 8 + 6 + 5 + 6 + 5 + 527 + 23 + 3 + 82 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18656552723387) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 7996806688 + ... + 7996809020.

It is an arithmetic number, because the mean of its divisors is an integer number (70604863056).

Almost surely, 2^{18656552723382} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18656552723382, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27112267413504).

18656552723382 is an abundant number, since it is smaller than the sum of its proper divisors (35567982103626).

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

18656552723382 is a wasteful number, since it uses less digits than its factorization.

18656552723382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2573 (or 2570 counting only the distinct ones).

The product of its digits is 145152000, while the sum is 63.

The spelling of 18656552723382 in words is "eighteen trillion, six hundred fifty-six billion, five hundred fifty-two million, seven hundred twenty-three thousand, three hundred eighty-two".