1816164830040 has 128 divisors (see below), whose sum is σ = 5965746232320. Its totient is φ = 438657638400.

The previous prime is 1816164830033. The next prime is 1816164830057. The reversal of 1816164830040 is 400384616181.

It is a junction number, because it is equal to n+sod(n) for n = 1816164829974 and 1816164830001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2180809 + ... + 2896248.

It is an arithmetic number, because the mean of its divisors is an integer number (46607392440).

Almost surely, 2^{1816164830040} is an apocalyptic number.

1816164830040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1816164830040 is an abundant number, since it is smaller than the sum of its proper divisors (4149581402280).

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

1816164830040 is a wasteful number, since it uses less digits than its factorization.

1816164830040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5077353 (or 5077349 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The spelling of 1816164830040 in words is "one trillion, eight hundred sixteen billion, one hundred sixty-four million, eight hundred thirty thousand, forty".