144556021074677 has 2 divisors, whose sum is σ = 144556021074678. Its totient is φ = 144556021074676.

The previous prime is 144556021074599. The next prime is 144556021074727. The reversal of 144556021074677 is 776470120655441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74706392877796 + 69849628196881 = 8643286^2 + 8357609^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144556021074677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144556021074977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72278010537338 + 72278010537339.

It is an arithmetic number, because the mean of its divisors is an integer number (72278010537339).

Almost surely, 2^{144556021074677} is an apocalyptic number.

It is an amenable number.

144556021074677 is a deficient number, since it is larger than the sum of its proper divisors (1).

144556021074677 is an equidigital number, since it uses as much as digits as its factorization.

144556021074677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39513600, while the sum is 59.

The spelling of 144556021074677 in words is "one hundred forty-four trillion, five hundred fifty-six billion, twenty-one million, seventy-four thousand, six hundred seventy-seven".