154555656029 has 2 divisors, whose sum is σ = 154555656030. Its totient is φ = 154555656028.

The previous prime is 154555656023. The next prime is 154555656061. The reversal of 154555656029 is 920656555451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126168460804 + 28387195225 = 355202^2 + 168485^2 .

It is an emirp because it is prime and its reverse (920656555451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 154555656029 - 2¹² = 154555651933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154555656023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77277828014 + 77277828015.

It is an arithmetic number, because the mean of its divisors is an integer number (77277828015).

Almost surely, 2^154555656029 is an apocalyptic number.

It is an amenable number.

154555656029 is a deficient number, since it is larger than the sum of its proper divisors (1).

154555656029 is an equidigital number, since it uses as much as digits as its factorization.

154555656029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100000, while the sum is 53.

The spelling of 154555656029 in words is "one hundred fifty-four billion, five hundred fifty-five million, six hundred fifty-six thousand, twenty-nine".