1816091466941 has 4 divisors (see below), whose sum is σ = 1816098216384. Its totient is φ = 1816084717500.

The previous prime is 1816091466913. The next prime is 1816091467109. The reversal of 1816091466941 is 1496641906181.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1816091466941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1816091466041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2953595 + ... + 3515096.

It is an arithmetic number, because the mean of its divisors is an integer number (454024554096).

Almost surely, 2^{1816091466941} is an apocalyptic number.

It is an amenable number.

1816091466941 is a deficient number, since it is larger than the sum of its proper divisors (6749443).

1816091466941 is an equidigital number, since it uses as much as digits as its factorization.

1816091466941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6749442.

The product of its (nonzero) digits is 2239488, while the sum is 56.

The spelling of 1816091466941 in words is "one trillion, eight hundred sixteen billion, ninety-one million, four hundred sixty-six thousand, nine hundred forty-one".