205045325536556 has 48 divisors (see below), whose sum is σ = 363082410190080. Its totient is φ = 101315529000000.

The previous prime is 205045325536537. The next prime is 205045325536577. The reversal of 205045325536556 is 655635523540502.

It is a super-2 number, since 2×205045325536556² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124863971 + ... + 126495461.

It is an arithmetic number, because the mean of its divisors is an integer number (7564216878960).

Almost surely, 2^{205045325536556} is an apocalyptic number.

It is an amenable number.

205045325536556 is a deficient number, since it is larger than the sum of its proper divisors (158037084653524).

205045325536556 is a wasteful number, since it uses less digits than its factorization.

205045325536556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632726 (or 1632724 counting only the distinct ones).

The product of its (nonzero) digits is 81000000, while the sum is 56.

The spelling of 205045325536556 in words is "two hundred five trillion, forty-five billion, three hundred twenty-five million, five hundred thirty-six thousand, five hundred fifty-six".