238158855866 has 8 divisors (see below), whose sum is σ = 359604100704. Its totient is φ = 118290822300.

The previous prime is 238158855859. The next prime is 238158855877. The reversal of 238158855866 is 668558851832.

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

It is a Curzon 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, 394302440 + ... + 394303043.

It is an arithmetic number, because the mean of its divisors is an integer number (44950512588).

Almost surely, 2^238158855866 is an apocalyptic number.

238158855866 is a deficient number, since it is larger than the sum of its proper divisors (121445244838).

238158855866 is a wasteful number, since it uses less digits than its factorization.

238158855866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788605636.

The product of its digits is 110592000, while the sum is 65.

The spelling of 238158855866 in words is "two hundred thirty-eight billion, one hundred fifty-eight million, eight hundred fifty-five thousand, eight hundred sixty-six".