155156328799 has 2 divisors, whose sum is σ = 155156328800. Its totient is φ = 155156328798.

The previous prime is 155156328779. The next prime is 155156328809. The reversal of 155156328799 is 997823651551.

It is a strong prime.

It is an emirp because it is prime and its reverse (997823651551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 155156328799 - 2¹⁹ = 155155804511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155156328749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77578164399 + 77578164400.

It is an arithmetic number, because the mean of its divisors is an integer number (77578164400).

Almost surely, 2^155156328799 is an apocalyptic number.

155156328799 is a deficient number, since it is larger than the sum of its proper divisors (1).

155156328799 is an equidigital number, since it uses as much as digits as its factorization.

155156328799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20412000, while the sum is 61.

The spelling of 155156328799 in words is "one hundred fifty-five billion, one hundred fifty-six million, three hundred twenty-eight thousand, seven hundred ninety-nine".