155240033311 has 16 divisors (see below), whose sum is σ = 178279545600. Its totient is φ = 133689441600.

The previous prime is 155240033287. The next prime is 155240033317. The reversal of 155240033311 is 113330042551.

It is a happy number.

It is not a de Polignac number, because 155240033311 - 2¹³ = 155240025119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 155240033311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155240033317) 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 15 ways as a sum of consecutive naturals, for example, 4438251 + ... + 4473091.

It is an arithmetic number, because the mean of its divisors is an integer number (11142471600).

Almost surely, 2^155240033311 is an apocalyptic number.

155240033311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

155240033311 is a deficient number, since it is larger than the sum of its proper divisors (23039512289).

155240033311 is a wasteful number, since it uses less digits than its factorization.

155240033311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56190.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 155240033311 its reverse (113330042551), we get a palindrome (268570075862).

The spelling of 155240033311 in words is "one hundred fifty-five billion, two hundred forty million, thirty-three thousand, three hundred eleven".