155135034220 has 24 divisors (see below), whose sum is σ = 325790995824. Its totient is φ = 62052599616.

The previous prime is 155135034211. The next prime is 155135034253. The reversal of 155135034220 is 22430531551.

It is an unprimeable number.

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, 1572387 + ... + 1668133.

It is an arithmetic number, because the mean of its divisors is an integer number (13574624826).

Almost surely, 2^155135034220 is an apocalyptic number.

155135034220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155135034220 is an abundant number, since it is smaller than the sum of its proper divisors (170655961604).

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

155135034220 is a wasteful number, since it uses less digits than its factorization.

155135034220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176769 (or 176767 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 155135034220 its reverse (22430531551), we get a palindrome (177565565771).

The spelling of 155135034220 in words is "one hundred fifty-five billion, one hundred thirty-five million, thirty-four thousand, two hundred twenty".