1820002060188 has 72 divisors (see below), whose sum is σ = 5169860955168. Its totient is φ = 535652777088.

The previous prime is 1820002060157. The next prime is 1820002060207. The reversal of 1820002060188 is 8810602000281.

1820002060188 is a `hidden beast` number, since 1 + 8 + 20 + 0 + 0 + 20 + 601 + 8 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84530395 + ... + 84551922.

Almost surely, 2^{1820002060188} is an apocalyptic number.

1820002060188 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1820002060188 is an abundant number, since it is smaller than the sum of its proper divisors (3349858894980).

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

1820002060188 is a wasteful number, since it uses less digits than its factorization.

1820002060188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169082363 (or 169082358 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The spelling of 1820002060188 in words is "one trillion, eight hundred twenty billion, two million, sixty thousand, one hundred eighty-eight".