155040213768 has 128 divisors (see below), whose sum is σ = 425029939200. Its totient is φ = 46738771200.

The previous prime is 155040213767. The next prime is 155040213787. The reversal of 155040213768 is 867312040551.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (155040213763) 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, 70375755 + ... + 70377957.

It is an arithmetic number, because the mean of its divisors is an integer number (3320546400).

Almost surely, 2^155040213768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155040213768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212514969600).

155040213768 is an abundant number, since it is smaller than the sum of its proper divisors (269989725432).

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

155040213768 is a wasteful number, since it uses less digits than its factorization.

155040213768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3483 (or 3479 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 155040213768 in words is "one hundred fifty-five billion, forty million, two hundred thirteen thousand, seven hundred sixty-eight".