155045320326 has 96 divisors (see below), whose sum is σ = 378703503360. Its totient is φ = 45516945600.

The previous prime is 155045320321. The next prime is 155045320349. The reversal of 155045320326 is 623023540551.

155045320326 is a `hidden beast` number, since 1 + 5 + 5 + 0 + 4 + 5 + 320 + 326 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155045320321) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 364515 + ... + 665553.

It is an arithmetic number, because the mean of its divisors is an integer number (3944828160).

Almost surely, 2^155045320326 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155045320326, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189351751680).

155045320326 is an abundant number, since it is smaller than the sum of its proper divisors (223658183034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155045320326 is a wasteful number, since it uses less digits than its factorization.

155045320326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301162 (or 301159 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

Adding to 155045320326 its reverse (623023540551), we get a palindrome (778068860877).

The spelling of 155045320326 in words is "one hundred fifty-five billion, forty-five million, three hundred twenty thousand, three hundred twenty-six".