155404313111 has 8 divisors (see below), whose sum is σ = 166799795904. Its totient is φ = 144259280640.

The previous prime is 155404313089. The next prime is 155404313167. The reversal of 155404313111 is 111313404551.

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 155404313111 - 2¹⁴ = 155404296727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155404313171) 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, 62611295 + ... + 62613776.

It is an arithmetic number, because the mean of its divisors is an integer number (20849974488).

Almost surely, 2^155404313111 is an apocalyptic number.

155404313111 is a deficient number, since it is larger than the sum of its proper divisors (11395482793).

155404313111 is a wasteful number, since it uses less digits than its factorization.

155404313111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125225161.

The product of its (nonzero) digits is 3600, while the sum is 29.

Adding to 155404313111 its reverse (111313404551), we get a palindrome (266717717662).

The spelling of 155404313111 in words is "one hundred fifty-five billion, four hundred four million, three hundred thirteen thousand, one hundred eleven".