154203216316399 has 4 divisors (see below), whose sum is σ = 159177513616960. Its totient is φ = 149228919015840.

The previous prime is 154203216316381. The next prime is 154203216316403. The reversal of 154203216316399 is 993613612302451.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 154203216316399 - 2¹⁵ = 154203216283631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154203216376399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2487148650234 + ... + 2487148650295.

It is an arithmetic number, because the mean of its divisors is an integer number (39794378404240).

Almost surely, 2^{154203216316399} is an apocalyptic number.

154203216316399 is a deficient number, since it is larger than the sum of its proper divisors (4974297300561).

154203216316399 is an equidigital number, since it uses as much as digits as its factorization.

154203216316399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4974297300560.

The product of its (nonzero) digits is 6298560, while the sum is 55.

The spelling of 154203216316399 in words is "one hundred fifty-four trillion, two hundred three billion, two hundred sixteen million, three hundred sixteen thousand, three hundred ninety-nine".