155320985733342 has 64 divisors (see below), whose sum is σ = 365035226040576. Its totient is φ = 43436284623360.

The previous prime is 155320985733271. The next prime is 155320985733349. The reversal of 155320985733342 is 243337589023551.

155320985733342 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 not an unprimeable number, because it can be changed into a prime (155320985733349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17458363 + ... + 24807990.

It is an arithmetic number, because the mean of its divisors is an integer number (5703675406884).

Almost surely, 2^{155320985733342} is an apocalyptic number.

155320985733342 is an abundant number, since it is smaller than the sum of its proper divisors (209714240307234).

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

155320985733342 is a wasteful number, since it uses less digits than its factorization.

155320985733342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42270665.

The product of its (nonzero) digits is 81648000, while the sum is 60.

The spelling of 155320985733342 in words is "one hundred fifty-five trillion, three hundred twenty billion, nine hundred eighty-five million, seven hundred thirty-three thousand, three hundred forty-two".