1225154334166 has 16 divisors (see below), whose sum is σ = 2112841011456. Its totient is φ = 521922033576.

The previous prime is 1225154334161. The next prime is 1225154334269. The reversal of 1225154334166 is 6614334515221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225154334161) 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, 262006716 + ... + 262011391.

It is an arithmetic number, because the mean of its divisors is an integer number (132052563216).

Almost surely, 2^{1225154334166} is an apocalyptic number.

1225154334166 is a deficient number, since it is larger than the sum of its proper divisors (887686677290).

1225154334166 is a wasteful number, since it uses less digits than its factorization.

1225154334166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524018283.

The product of its digits is 518400, while the sum is 43.

Adding to 1225154334166 its reverse (6614334515221), we get a palindrome (7839488849387).

The spelling of 1225154334166 in words is "one trillion, two hundred twenty-five billion, one hundred fifty-four million, three hundred thirty-four thousand, one hundred sixty-six".