154644166223252 has 12 divisors (see below), whose sum is σ = 272122469294676. Its totient is φ = 76894889281920.

The previous prime is 154644166223249. The next prime is 154644166223317. The reversal of 154644166223252 is 252322661446451.

It can be written as a sum of positive squares in 2 ways, for example, as 42649441667716 + 111994724555536 = 6530654^2 + 10582756^2 .

It is a junction number, because it is equal to n+sod(n) for n = 154644166223194 and 154644166223203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106798456613 + ... + 106798458060.

It is an arithmetic number, because the mean of its divisors is an integer number (22676872441223).

Almost surely, 2^{154644166223252} is an apocalyptic number.

It is an amenable number.

154644166223252 is a deficient number, since it is larger than the sum of its proper divisors (117478303071424).

154644166223252 is a wasteful number, since it uses less digits than its factorization.

154644166223252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213596914858 (or 213596914856 counting only the distinct ones).

The product of its digits is 16588800, while the sum is 53.

The spelling of 154644166223252 in words is "one hundred fifty-four trillion, six hundred forty-four billion, one hundred sixty-six million, two hundred twenty-three thousand, two hundred fifty-two".