2366646443121 has 4 divisors (see below), whose sum is σ = 3155528590832. Its totient is φ = 1577764295412.

The previous prime is 2366646443113. The next prime is 2366646443149. The reversal of 2366646443121 is 1213446466632.

2366646443121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 2366646443121 - 2³ = 2366646443113 is a prime.

It is a super-3 number, since 3×2366646443121³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2366646443521) 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, 394441073851 + ... + 394441073856.

It is an arithmetic number, because the mean of its divisors is an integer number (788882147708).

Almost surely, 2^{2366646443121} is an apocalyptic number.

It is an amenable number.

2366646443121 is a deficient number, since it is larger than the sum of its proper divisors (788882147711).

2366646443121 is an equidigital number, since it uses as much as digits as its factorization.

2366646443121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788882147710.

The product of its digits is 2985984, while the sum is 48.

The spelling of 2366646443121 in words is "two trillion, three hundred sixty-six billion, six hundred forty-six million, four hundred forty-three thousand, one hundred twenty-one".