205942064072 has 16 divisors (see below), whose sum is σ = 386185287600. Its totient is φ = 102959320720.

The previous prime is 205942064051. The next prime is 205942064077. The reversal of 205942064072 is 270460249502.

It is not an unprimeable number, because it can be changed into a prime (205942064077) 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, 1388954 + ... + 1530057.

It is an arithmetic number, because the mean of its divisors is an integer number (24136580475).

Almost surely, 2^205942064072 is an apocalyptic number.

It is an amenable number.

205942064072 is a deficient number, since it is larger than the sum of its proper divisors (180243223528).

205942064072 is a wasteful number, since it uses less digits than its factorization.

205942064072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2927836 (or 2927832 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 205942064072 in words is "two hundred five billion, nine hundred forty-two million, sixty-four thousand, seventy-two".