154066206401 has 4 divisors (see below), whose sum is σ = 154067139204. Its totient is φ = 154065273600.

The previous prime is 154066206383. The next prime is 154066206431. The reversal of 154066206401 is 104602660451.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 111886905025 + 42179301376 = 334495^2 + 205376^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154066206401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154066206431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144680 + ... + 573641.

It is an arithmetic number, because the mean of its divisors is an integer number (38516784801).

Almost surely, 2^154066206401 is an apocalyptic number.

It is an amenable number.

154066206401 is a deficient number, since it is larger than the sum of its proper divisors (932803).

154066206401 is an equidigital number, since it uses as much as digits as its factorization.

154066206401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932802.

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 154066206401 its reverse (104602660451), we get a palindrome (258668866852).

The spelling of 154066206401 in words is "one hundred fifty-four billion, sixty-six million, two hundred six thousand, four hundred one".