155342953061 has 2 divisors, whose sum is σ = 155342953062. Its totient is φ = 155342953060.

The previous prime is 155342953009. The next prime is 155342953069. The reversal of 155342953061 is 160359243551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102780512836 + 52562440225 = 320594^2 + 229265^2 .

It is a cyclic number.

It is not a de Polignac number, because 155342953061 - 2²⁶ = 155275844197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155342953069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77671476530 + 77671476531.

It is an arithmetic number, because the mean of its divisors is an integer number (77671476531).

Almost surely, 2^155342953061 is an apocalyptic number.

It is an amenable number.

155342953061 is a deficient number, since it is larger than the sum of its proper divisors (1).

155342953061 is an equidigital number, since it uses as much as digits as its factorization.

155342953061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486000, while the sum is 44.

The spelling of 155342953061 in words is "one hundred fifty-five billion, three hundred forty-two million, nine hundred fifty-three thousand, sixty-one".