1820004675550 has 24 divisors (see below), whose sum is σ = 3385360332000. Its totient is φ = 727969260480.

The previous prime is 1820004675523. The next prime is 1820004675589. The reversal of 1820004675550 is 555764000281.

It is a junction number, because it is equal to n+sod(n) for n = 1820004675497 and 1820004675506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 328026 + ... + 1935874.

It is an arithmetic number, because the mean of its divisors is an integer number (141056680500).

Almost surely, 2^{1820004675550} is an apocalyptic number.

1820004675550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1820004675550 is a deficient number, since it is larger than the sum of its proper divisors (1565355656450).

1820004675550 is a wasteful number, since it uses less digits than its factorization.

1820004675550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630500 (or 1630495 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 43.

The spelling of 1820004675550 in words is "one trillion, eight hundred twenty billion, four million, six hundred seventy-five thousand, five hundred fifty".