205918885142 has 8 divisors (see below), whose sum is σ = 318842144832. Its totient is φ = 99638170200.

The previous prime is 205918885141. The next prime is 205918885181. The reversal of 205918885142 is 241588819502.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205918885141) 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, 1660636109 + ... + 1660636232.

It is an arithmetic number, because the mean of its divisors is an integer number (39855268104).

Almost surely, 2^205918885142 is an apocalyptic number.

205918885142 is a deficient number, since it is larger than the sum of its proper divisors (112923259690).

205918885142 is a wasteful number, since it uses less digits than its factorization.

205918885142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3321272374.

The product of its (nonzero) digits is 1843200, while the sum is 53.

The spelling of 205918885142 in words is "two hundred five billion, nine hundred eighteen million, eight hundred eighty-five thousand, one hundred forty-two".