155387351119 has 48 divisors (see below), whose sum is σ = 212458498560. Its totient is φ = 111713999040.

The previous prime is 155387351083. The next prime is 155387351129. The reversal of 155387351119 is 911153783551.

It is a happy number.

155387351119 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 155387351119 - 2²⁵ = 155353796687 is a prime.

It is a super-2 number, since 2×155387351119² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155387351129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20337502 + ... + 20345140.

It is an arithmetic number, because the mean of its divisors is an integer number (4426218720).

Almost surely, 2^155387351119 is an apocalyptic number.

155387351119 is a deficient number, since it is larger than the sum of its proper divisors (57071147441).

155387351119 is a wasteful number, since it uses less digits than its factorization.

155387351119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10580 (or 10573 counting only the distinct ones).

The product of its digits is 567000, while the sum is 49.

The spelling of 155387351119 in words is "one hundred fifty-five billion, three hundred eighty-seven million, three hundred fifty-one thousand, one hundred nineteen".