154205541452066 has 8 divisors (see below), whose sum is σ = 249101259268764. Its totient is φ = 71171788362480.

The previous prime is 154205541452059. The next prime is 154205541452077. The reversal of 154205541452066 is 660254145502451.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 150720677617225 + 3484863834841 = 12276835^2 + 1866779^2 .

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

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, 2965491181745 + ... + 2965491181796.

Almost surely, 2^{154205541452066} is an apocalyptic number.

154205541452066 is a deficient number, since it is larger than the sum of its proper divisors (94895717816698).

154205541452066 is a wasteful number, since it uses less digits than its factorization.

154205541452066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5930982363556.

The product of its (nonzero) digits is 5760000, while the sum is 50.

The spelling of 154205541452066 in words is "one hundred fifty-four trillion, two hundred five billion, five hundred forty-one million, four hundred fifty-two thousand, sixty-six".