155117210938 has 8 divisors (see below), whose sum is σ = 240181488000. Its totient is φ = 75056714940.

The previous prime is 155117210929. The next prime is 155117210971. The reversal of 155117210938 is 839012711551.

155117210938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×155117210938² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 155117210894 and 155117210903.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1250945188 + ... + 1250945311.

It is an arithmetic number, because the mean of its divisors is an integer number (30022686000).

Almost surely, 2^155117210938 is an apocalyptic number.

155117210938 is a deficient number, since it is larger than the sum of its proper divisors (85064277062).

155117210938 is a wasteful number, since it uses less digits than its factorization.

155117210938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2501890532.

The product of its (nonzero) digits is 75600, while the sum is 43.

The spelling of 155117210938 in words is "one hundred fifty-five billion, one hundred seventeen million, two hundred ten thousand, nine hundred thirty-eight".