238866136365 has 16 divisors (see below), whose sum is σ = 382553683200. Its totient is φ = 127272651072.

The previous prime is 238866136357. The next prime is 238866136373. The reversal of 238866136365 is 563631668832.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (238866136357) and next prime (238866136373).

It is not a de Polignac number, because 238866136365 - 2³ = 238866136357 is a prime.

It is a super-2 number, since 2×238866136365² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7647750 + ... + 7678919.

It is an arithmetic number, because the mean of its divisors is an integer number (23909605200).

Almost surely, 2^238866136365 is an apocalyptic number.

It is an amenable number.

238866136365 is a deficient number, since it is larger than the sum of its proper divisors (143687546835).

238866136365 is a wasteful number, since it uses less digits than its factorization.

238866136365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15327716.

The product of its digits is 22394880, while the sum is 57.

The spelling of 238866136365 in words is "two hundred thirty-eight billion, eight hundred sixty-six million, one hundred thirty-six thousand, three hundred sixty-five".