155232035550 has 96 divisors (see below), whose sum is σ = 435000729600. Its totient is φ = 40693574880.

The previous prime is 155232035533. The next prime is 155232035557. The reversal of 155232035550 is 55530232551.

155232035550 is a `hidden beast` number, since 1 + 5 + 52 + 3 + 20 + 35 + 550 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155232035557) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 894814 + ... + 1054113.

It is an arithmetic number, because the mean of its divisors is an integer number (4531257600).

Almost surely, 2^155232035550 is an apocalyptic number.

155232035550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155232035550 is an abundant number, since it is smaller than the sum of its proper divisors (279768694050).

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

155232035550 is a wasteful number, since it uses less digits than its factorization.

155232035550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1949007 (or 1948996 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 36.

The spelling of 155232035550 in words is "one hundred fifty-five billion, two hundred thirty-two million, thirty-five thousand, five hundred fifty".