1641311655923 has 4 divisors (see below), whose sum is σ = 1641317188800. Its totient is φ = 1641306123048.

The previous prime is 1641311655859. The next prime is 1641311655931. The reversal of 1641311655923 is 3295561131461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1641311655923 - 2⁶ = 1641311655859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1641311655983) 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, 2294648 + ... + 2923701.

It is an arithmetic number, because the mean of its divisors is an integer number (410329297200).

Almost surely, 2^{1641311655923} is an apocalyptic number.

1641311655923 is a deficient number, since it is larger than the sum of its proper divisors (5532877).

1641311655923 is an equidigital number, since it uses as much as digits as its factorization.

1641311655923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5532876.

The product of its digits is 583200, while the sum is 47.

The spelling of 1641311655923 in words is "one trillion, six hundred forty-one billion, three hundred eleven million, six hundred fifty-five thousand, nine hundred twenty-three".