155384617051 has 2 divisors, whose sum is σ = 155384617052. Its totient is φ = 155384617050.

The previous prime is 155384616923. The next prime is 155384617133. The reversal of 155384617051 is 150716483551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 155384617051 - 2⁷ = 155384616923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155384616992 and 155384617010.

It is not a weakly prime, because it can be changed into another prime (155384617951) 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, 77692308525 + 77692308526.

It is an arithmetic number, because the mean of its divisors is an integer number (77692308526).

Almost surely, 2^155384617051 is an apocalyptic number.

155384617051 is a deficient number, since it is larger than the sum of its proper divisors (1).

155384617051 is an equidigital number, since it uses as much as digits as its factorization.

155384617051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504000, while the sum is 46.

The spelling of 155384617051 in words is "one hundred fifty-five billion, three hundred eighty-four million, six hundred seventeen thousand, fifty-one".