163850575801139 has 4 divisors (see below), whose sum is σ = 164012323655856. Its totient is φ = 163688827946424.

The previous prime is 163850575801123. The next prime is 163850575801181. The reversal of 163850575801139 is 931108575058361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 163850575801139 - 2⁴ = 163850575801123 is a prime.

It is a super-2 number, since 2×163850575801139² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163850575801109) 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, 80873925839 + ... + 80873927864.

It is an arithmetic number, because the mean of its divisors is an integer number (41003080913964).

Almost surely, 2^{163850575801139} is an apocalyptic number.

163850575801139 is a deficient number, since it is larger than the sum of its proper divisors (161747854717).

163850575801139 is a wasteful number, since it uses less digits than its factorization.

163850575801139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161747854716.

The product of its (nonzero) digits is 27216000, while the sum is 62.

The spelling of 163850575801139 in words is "one hundred sixty-three trillion, eight hundred fifty billion, five hundred seventy-five million, eight hundred one thousand, one hundred thirty-nine".