2251166244243 has 32 divisors (see below), whose sum is σ = 3636138852864. Its totient is φ = 1209376230912.

The previous prime is 2251166244227. The next prime is 2251166244259. The reversal of 2251166244243 is 3424426611522.

It is an interprime number because it is at equal distance from previous prime (2251166244227) and next prime (2251166244259).

It is not a de Polignac number, because 2251166244243 - 2⁴ = 2251166244227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2251166244195 and 2251166244204.

It is not an unprimeable number, because it can be changed into a prime (2251166243243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3152380 + ... + 3799977.

It is an arithmetic number, because the mean of its divisors is an integer number (113629339152).

Almost surely, 2^{2251166244243} is an apocalyptic number.

2251166244243 is a deficient number, since it is larger than the sum of its proper divisors (1384972608621).

2251166244243 is a wasteful number, since it uses less digits than its factorization.

2251166244243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6953291.

The product of its digits is 552960, while the sum is 42.

The spelling of 2251166244243 in words is "two trillion, two hundred fifty-one billion, one hundred sixty-six million, two hundred forty-four thousand, two hundred forty-three".