205342154506 has 8 divisors (see below), whose sum is σ = 315176330304. Its totient is φ = 100283377740.

The previous prime is 205342154453. The next prime is 205342154519. The reversal of 205342154506 is 605451243502.

205342154506 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×205342154506² (a number of 23 digits) contains 22 as substring.

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, 1193849650 + ... + 1193849821.

It is an arithmetic number, because the mean of its divisors is an integer number (39397041288).

Almost surely, 2^205342154506 is an apocalyptic number.

205342154506 is a deficient number, since it is larger than the sum of its proper divisors (109834175798).

205342154506 is a wasteful number, since it uses less digits than its factorization.

205342154506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2387699516.

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 205342154506 in words is "two hundred five billion, three hundred forty-two million, one hundred fifty-four thousand, five hundred six".