1806602168280 has 512 divisors, whose sum is σ = 6967981117440. Its totient is φ = 364211527680.

The previous prime is 1806602168251. The next prime is 1806602168299. The reversal of 1806602168280 is 828612066081.

It is a happy number.

It is a super-2 number, since 2×1806602168280² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 274514590 + ... + 274521170.

It is an arithmetic number, because the mean of its divisors is an integer number (13609338120).

Almost surely, 2^{1806602168280} is an apocalyptic number.

1806602168280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1806602168280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3483990558720).

1806602168280 is an abundant number, since it is smaller than the sum of its proper divisors (5161378949160).

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

1806602168280 is a wasteful number, since it uses less digits than its factorization.

1806602168280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7731 (or 7727 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The spelling of 1806602168280 in words is "one trillion, eight hundred six billion, six hundred two million, one hundred sixty-eight thousand, two hundred eighty".