155013434020 has 48 divisors (see below), whose sum is σ = 327697776000. Its totient is φ = 61593143040.

The previous prime is 155013434003. The next prime is 155013434039. The reversal of 155013434020 is 20434310551.

It is a self number, because there is not a number n which added to its sum of digits gives 155013434020.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2432160 + ... + 2495080.

It is an arithmetic number, because the mean of its divisors is an integer number (6827037000).

Almost surely, 2^155013434020 is an apocalyptic number.

155013434020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155013434020 is an abundant number, since it is smaller than the sum of its proper divisors (172684341980).

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

155013434020 is a wasteful number, since it uses less digits than its factorization.

155013434020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63748 (or 63746 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 155013434020 its reverse (20434310551), we get a palindrome (175447744571).

The spelling of 155013434020 in words is "one hundred fifty-five billion, thirteen million, four hundred thirty-four thousand, twenty".