155540068 has 12 divisors (see below), whose sum is σ = 272536432. Its totient is φ = 77672520.

The previous prime is 155540059. The next prime is 155540069. The reversal of 155540068 is 860045551.

It is a happy number.

155540068 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (155540069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20730 + ... + 27217.

Almost surely, 2^155540068 is an apocalyptic number.

It is an amenable number.

155540068 is a deficient number, since it is larger than the sum of its proper divisors (116996364).

155540068 is a wasteful number, since it uses less digits than its factorization.

155540068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48762 (or 48760 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 155540068 is about 12471.5703902917. The cubic root of 155540068 is about 537.7916994640.

The spelling of 155540068 in words is "one hundred fifty-five million, five hundred forty thousand, sixty-eight".