2251154006205 has 32 divisors (see below), whose sum is σ = 3881520566784. Its totient is φ = 1107514991616.

The previous prime is 2251154006191. The next prime is 2251154006251. The reversal of 2251154006205 is 5026004511522.

It is not a de Polignac number, because 2251154006205 - 2⁷ = 2251154006077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3591804 + ... + 4171733.

It is an arithmetic number, because the mean of its divisors is an integer number (121297517712).

Almost surely, 2^{2251154006205} is an apocalyptic number.

It is an amenable number.

2251154006205 is a deficient number, since it is larger than the sum of its proper divisors (1630366560579).

2251154006205 is a wasteful number, since it uses less digits than its factorization.

2251154006205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7765045.

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 2251154006205 its reverse (5026004511522), we get a palindrome (7277158517727).

The spelling of 2251154006205 in words is "two trillion, two hundred fifty-one billion, one hundred fifty-four million, six thousand, two hundred five".