155135256326 has 4 divisors (see below), whose sum is σ = 232702884492. Its totient is φ = 77567628162.

The previous prime is 155135256319. The next prime is 155135256433. The reversal of 155135256326 is 623652531551.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38783814080 + ... + 38783814083.

It is an arithmetic number, because the mean of its divisors is an integer number (58175721123).

Almost surely, 2^155135256326 is an apocalyptic number.

155135256326 is a deficient number, since it is larger than the sum of its proper divisors (77567628166).

155135256326 is an equidigital number, since it uses as much as digits as its factorization.

155135256326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77567628165.

The product of its digits is 810000, while the sum is 44.

Adding to 155135256326 its reverse (623652531551), we get a palindrome (778787787877).

The spelling of 155135256326 in words is "one hundred fifty-five billion, one hundred thirty-five million, two hundred fifty-six thousand, three hundred twenty-six".