340033520021549 has 2 divisors, whose sum is σ = 340033520021550. Its totient is φ = 340033520021548.

The previous prime is 340033520021521. The next prime is 340033520021641. The reversal of 340033520021549 is 945120025330043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 287082429459049 + 52951090562500 = 16943507^2 + 7276750^2 .

It is a cyclic number.

It is not a de Polignac number, because 340033520021549 - 2²⁴ = 340033503244333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340033520021249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170016760010774 + 170016760010775.

It is an arithmetic number, because the mean of its divisors is an integer number (170016760010775).

Almost surely, 2^{340033520021549} is an apocalyptic number.

It is an amenable number.

340033520021549 is a deficient number, since it is larger than the sum of its proper divisors (1).

340033520021549 is an equidigital number, since it uses as much as digits as its factorization.

340033520021549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 340033520021549 in words is "three hundred forty trillion, thirty-three billion, five hundred twenty million, twenty-one thousand, five hundred forty-nine".