2251666111144 has 32 divisors (see below), whose sum is σ = 4307515200000. Its totient is φ = 1103054485312.

The previous prime is 2251666111109. The next prime is 2251666111147. The reversal of 2251666111144 is 4411116661522.

It is a junction number, because it is equal to n+sod(n) for n = 2251666111097 and 2251666111106.

It is not an unprimeable number, because it can be changed into a prime (2251666111147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3388144 + ... + 3997855.

It is an arithmetic number, because the mean of its divisors is an integer number (134609850000).

Almost surely, 2^{2251666111144} is an apocalyptic number.

It is an amenable number.

2251666111144 is a deficient number, since it is larger than the sum of its proper divisors (2055849088856).

2251666111144 is a wasteful number, since it uses less digits than its factorization.

2251666111144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7386777 (or 7386773 counting only the distinct ones).

The product of its digits is 69120, while the sum is 40.

The spelling of 2251666111144 in words is "two trillion, two hundred fifty-one billion, six hundred sixty-six million, one hundred eleven thousand, one hundred forty-four".