154104640653617 has 2 divisors, whose sum is σ = 154104640653618. Its totient is φ = 154104640653616.

The previous prime is 154104640653553. The next prime is 154104640653641. The reversal of 154104640653617 is 716356046401451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84229736760976 + 69874903892641 = 9177676^2 + 8359121^2 .

It is a cyclic number.

It is not a de Polignac number, because 154104640653617 - 2⁶ = 154104640653553 is a prime.

It is not a weakly prime, because it can be changed into another prime (154104643653617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77052320326808 + 77052320326809.

It is an arithmetic number, because the mean of its divisors is an integer number (77052320326809).

Almost surely, 2^{154104640653617} is an apocalyptic number.

It is an amenable number.

154104640653617 is a deficient number, since it is larger than the sum of its proper divisors (1).

154104640653617 is an equidigital number, since it uses as much as digits as its factorization.

154104640653617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7257600, while the sum is 53.

The spelling of 154104640653617 in words is "one hundred fifty-four trillion, one hundred four billion, six hundred forty million, six hundred fifty-three thousand, six hundred seventeen".