155020314520 has 16 divisors (see below), whose sum is σ = 348795707760. Its totient is φ = 62008125792.

The previous prime is 155020314511. The next prime is 155020314563. The reversal of 155020314520 is 25413020551.

155020314520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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, 1937753892 + ... + 1937753971.

It is an arithmetic number, because the mean of its divisors is an integer number (21799731735).

Almost surely, 2^155020314520 is an apocalyptic number.

155020314520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155020314520 is an abundant number, since it is smaller than the sum of its proper divisors (193775393240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155020314520 is a wasteful number, since it uses less digits than its factorization.

155020314520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3875507874 (or 3875507870 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 155020314520 in words is "one hundred fifty-five billion, twenty million, three hundred fourteen thousand, five hundred twenty".