205761164043 has 8 divisors (see below), whose sum is σ = 275546246800. Its totient is φ = 136575095328.

The previous prime is 205761164039. The next prime is 205761164051. The reversal of 205761164043 is 340461167502.

It is a happy number.

205761164043 is digitally balanced in base 2, 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 not a de Polignac number, because 205761164043 - 2² = 205761164039 is a prime.

It is a super-2 number, since 2×205761164043² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 205761163992 and 205761164010.

It is not an unprimeable number, because it can be changed into a prime (205761114043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149752708 + ... + 149754081.

It is an arithmetic number, because the mean of its divisors is an integer number (34443280850).

Almost surely, 2^205761164043 is an apocalyptic number.

205761164043 is a deficient number, since it is larger than the sum of its proper divisors (69785082757).

205761164043 is a wasteful number, since it uses less digits than its factorization.

205761164043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299507021.

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 205761164043 in words is "two hundred five billion, seven hundred sixty-one million, one hundred sixty-four thousand, forty-three".