350020185381 has 24 divisors (see below), whose sum is σ = 510587288640. Its totient is φ = 231038744256.

The previous prime is 350020185341. The next prime is 350020185391. The reversal of 350020185381 is 183581020053.

350020185381 is a `hidden beast` number, since 3 + 500 + 20 + 1 + 8 + 53 + 81 = 666.

It is not a de Polignac number, because 350020185381 - 2¹⁰ = 350020184357 is a prime.

It is a super-2 number, since 2×350020185381² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (350020185341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5473665 + ... + 5537241.

It is an arithmetic number, because the mean of its divisors is an integer number (21274470360).

Almost surely, 2^350020185381 is an apocalyptic number.

It is an amenable number.

350020185381 is a deficient number, since it is larger than the sum of its proper divisors (160567103259).

350020185381 is a wasteful number, since it uses less digits than its factorization.

350020185381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69625 (or 69622 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 350020185381 in words is "three hundred fifty billion, twenty million, one hundred eighty-five thousand, three hundred eighty-one".