3668218088535 has 256 divisors, whose sum is σ = 9057775104000. Its totient is φ = 1358663362560.

The previous prime is 3668218088533. The next prime is 3668218088539. The reversal of 3668218088535 is 5358808128663.

3668218088535 is a `hidden beast` number, since 3 + 6 + 6 + 8 + 2 + 18 + 0 + 88 + 535 = 666.

3668218088535 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3668218088535 - 2¹ = 3668218088533 is a prime.

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 (3668218088533) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 3450901 + ... + 4386929.

It is an arithmetic number, because the mean of its divisors is an integer number (35381934000).

Almost surely, 2^{3668218088535} is an apocalyptic number.

3668218088535 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3668218088535 is an abundant number, since it is smaller than the sum of its proper divisors (5389557015465).

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

3668218088535 is a wasteful number, since it uses less digits than its factorization.

3668218088535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936103 (or 936097 counting only the distinct ones).

The product of its (nonzero) digits is 66355200, while the sum is 63.

The spelling of 3668218088535 in words is "three trillion, six hundred sixty-eight billion, two hundred eighteen million, eighty-eight thousand, five hundred thirty-five".