155044233020 has 12 divisors (see below), whose sum is σ = 325592889384. Its totient is φ = 62017693200.

The previous prime is 155044233013. The next prime is 155044233031. The reversal of 155044233020 is 20332440551.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3876105806 + ... + 3876105845.

It is an arithmetic number, because the mean of its divisors is an integer number (27132740782).

Almost surely, 2^155044233020 is an apocalyptic number.

155044233020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155044233020 is an abundant number, since it is smaller than the sum of its proper divisors (170548656364).

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

155044233020 is a wasteful number, since it uses less digits than its factorization.

155044233020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7752211660 (or 7752211658 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 155044233020 its reverse (20332440551), we get a palindrome (175376673571).

The spelling of 155044233020 in words is "one hundred fifty-five billion, forty-four million, two hundred thirty-three thousand, twenty".