155834160649 has 2 divisors, whose sum is σ = 155834160650. Its totient is φ = 155834160648.

The previous prime is 155834160619. The next prime is 155834160653. The reversal of 155834160649 is 946061438551.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155736783225 + 97377424 = 394635^2 + 9868^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155834160649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155834160596 and 155834160605.

It is not a weakly prime, because it can be changed into another prime (155834160619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77917080324 + 77917080325.

It is an arithmetic number, because the mean of its divisors is an integer number (77917080325).

Almost surely, 2^155834160649 is an apocalyptic number.

It is an amenable number.

155834160649 is a deficient number, since it is larger than the sum of its proper divisors (1).

155834160649 is an equidigital number, since it uses as much as digits as its factorization.

155834160649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3110400, while the sum is 52.

The spelling of 155834160649 in words is "one hundred fifty-five billion, eight hundred thirty-four million, one hundred sixty thousand, six hundred forty-nine".