1820022527232 has 432 divisors, whose sum is σ = 6798490840960. Its totient is φ = 454741475328.

The previous prime is 1820022527153. The next prime is 1820022527243. The reversal of 1820022527232 is 2327252200281.

1820022527232 is a `hidden beast` number, since 1 + 82 + 0 + 0 + 22 + 527 + 2 + 32 = 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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3755178 + ... + 4212054.

Almost surely, 2^{1820022527232} is an apocalyptic number.

1820022527232 is a gapful number since it is divisible by the number (12) 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 1820022527232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3399245420480).

1820022527232 is an abundant number, since it is smaller than the sum of its proper divisors (4978468313728).

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

1820022527232 is a wasteful number, since it uses less digits than its factorization.

1820022527232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456938 (or 456921 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The spelling of 1820022527232 in words is "one trillion, eight hundred twenty billion, twenty-two million, five hundred twenty-seven thousand, two hundred thirty-two".