18603369308106 has 168 divisors, whose sum is σ = 46741632518532. Its totient is φ = 5544965289600.

The previous prime is 18603369308089. The next prime is 18603369308119. The reversal of 18603369308106 is 60180396330681.

18603369308106 is a `hidden beast` number, since 18 + 603 + 3 + 6 + 9 + 3 + 0 + 8 + 10 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18045427536081 + 557941772025 = 4247991^2 + 746955^2 .

It is a super-2 number, since 2×18603369308106² (a number of 27 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 9897150 + ... + 11625846.

Almost surely, 2^{18603369308106} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18603369308106, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23370816259266).

18603369308106 is an abundant number, since it is smaller than the sum of its proper divisors (28138263210426).

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

18603369308106 is a wasteful number, since it uses less digits than its factorization.

18603369308106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728800 (or 1728774 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The spelling of 18603369308106 in words is "eighteen trillion, six hundred three billion, three hundred sixty-nine million, three hundred eight thousand, one hundred six".