155113839039 has 4 divisors (see below), whose sum is σ = 206818452056. Its totient is φ = 103409226024.

The previous prime is 155113838993. The next prime is 155113839157. The reversal of 155113839039 is 930938311551.

155113839039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 155113839039 - 2²³ = 155105450431 is a prime.

It is a super-2 number, since 2×155113839039² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155113832039) 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 3 ways as a sum of consecutive naturals, for example, 25852306504 + ... + 25852306509.

It is an arithmetic number, because the mean of its divisors is an integer number (51704613014).

Almost surely, 2^155113839039 is an apocalyptic number.

155113839039 is a deficient number, since it is larger than the sum of its proper divisors (51704613017).

155113839039 is an equidigital number, since it uses as much as digits as its factorization.

155113839039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51704613016.

The product of its (nonzero) digits is 437400, while the sum is 48.

The spelling of 155113839039 in words is "one hundred fifty-five billion, one hundred thirteen million, eight hundred thirty-nine thousand, thirty-nine".