205614749672 has 8 divisors (see below), whose sum is σ = 385527655650. Its totient is φ = 102807374832.

The previous prime is 205614749657. The next prime is 205614749731. The reversal of 205614749672 is 276947416502.

It can be written as a sum of positive squares in only one way, i.e., 136984372996 + 68630376676 = 370114^2 + 261974^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12850921847 + ... + 12850921862.

Almost surely, 2^205614749672 is an apocalyptic number.

It is an amenable number.

205614749672 is a deficient number, since it is larger than the sum of its proper divisors (179912905978).

205614749672 is a wasteful number, since it uses less digits than its factorization.

205614749672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25701843715 (or 25701843711 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 53.

The spelling of 205614749672 in words is "two hundred five billion, six hundred fourteen million, seven hundred forty-nine thousand, six hundred seventy-two".