154021711340144 has 10 divisors (see below), whose sum is σ = 298417065721560. Its totient is φ = 77010855670064.

The previous prime is 154021711340131. The next prime is 154021711340279. The reversal of 154021711340144 is 441043117120451.

It is a junction number, because it is equal to n+sod(n) for n = 154021711340098 and 154021711340107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4813178479364 + ... + 4813178479395.

It is an arithmetic number, because the mean of its divisors is an integer number (29841706572156).

Almost surely, 2^{154021711340144} is an apocalyptic number.

It is an amenable number.

154021711340144 is a deficient number, since it is larger than the sum of its proper divisors (144395354381416).

154021711340144 is an equidigital number, since it uses as much as digits as its factorization.

154021711340144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9626356958767 (or 9626356958761 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

Adding to 154021711340144 its reverse (441043117120451), we get a palindrome (595064828460595).

The spelling of 154021711340144 in words is "one hundred fifty-four trillion, twenty-one billion, seven hundred eleven million, three hundred forty thousand, one hundred forty-four".