155321425163 has 8 divisors (see below), whose sum is σ = 159146705760. Its totient is φ = 151497904320.

The previous prime is 155321425153. The next prime is 155321425187. The reversal of 155321425163 is 361524123551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155321425163 - 2²⁰ = 155320376587 is a prime.

It is a super-2 number, since 2×155321425163² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155321425153) 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 in 7 ways as a sum of consecutive naturals, for example, 260348 + ... + 615161.

It is an arithmetic number, because the mean of its divisors is an integer number (19893338220).

Almost surely, 2^155321425163 is an apocalyptic number.

155321425163 is a deficient number, since it is larger than the sum of its proper divisors (3825280597).

155321425163 is an equidigital number, since it uses as much as digits as its factorization.

155321425163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879877.

The product of its digits is 108000, while the sum is 38.

The spelling of 155321425163 in words is "one hundred fifty-five billion, three hundred twenty-one million, four hundred twenty-five thousand, one hundred sixty-three".