154105145666225 has 48 divisors (see below), whose sum is σ = 211359199072560. Its totient is φ = 110721006259200.

The previous prime is 154105145666203. The next prime is 154105145666257. The reversal of 154105145666225 is 522666541501451.

It can be written as a sum of positive squares in 24 ways, for example, as 104974634878369 + 49130510787856 = 10245713^2 + 7009316^2 .

It is not a de Polignac number, because 154105145666225 - 2⁶ = 154105145666161 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 353184695 + ... + 353620755.

It is an arithmetic number, because the mean of its divisors is an integer number (4403316647345).

Almost surely, 2^{154105145666225} is an apocalyptic number.

It is an amenable number.

154105145666225 is a deficient number, since it is larger than the sum of its proper divisors (57254053406335).

154105145666225 is a wasteful number, since it uses less digits than its factorization.

154105145666225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465510 (or 465505 counting only the distinct ones).

The product of its (nonzero) digits is 8640000, while the sum is 53.

The spelling of 154105145666225 in words is "one hundred fifty-four trillion, one hundred five billion, one hundred forty-five million, six hundred sixty-six thousand, two hundred twenty-five".