2251206665003 has 8 divisors (see below), whose sum is σ = 2300215993920. Its totient is φ = 2202243640960.

The previous prime is 2251206664991. The next prime is 2251206665027. The reversal of 2251206665003 is 3005666021522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2251206665003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2251206665033) 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, 11477918 + ... + 11672403.

It is an arithmetic number, because the mean of its divisors is an integer number (287526999240).

Almost surely, 2^{2251206665003} is an apocalyptic number.

2251206665003 is a deficient number, since it is larger than the sum of its proper divisors (49009328917).

2251206665003 is a wasteful number, since it uses less digits than its factorization.

2251206665003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23152437.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 2251206665003 in words is "two trillion, two hundred fifty-one billion, two hundred six million, six hundred sixty-five thousand, three".