200802525561 has 24 divisors (see below), whose sum is σ = 316434178944. Its totient is φ = 121691547360.

The previous prime is 200802525557. The next prime is 200802525569. The reversal of 200802525561 is 165525208002.

It is a happy number.

200802525561 is a `hidden beast` number, since 2 + 0 + 0 + 80 + 2 + 525 + 56 + 1 = 666.

It is not a de Polignac number, because 200802525561 - 2² = 200802525557 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200802525569) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2080015 + ... + 2174411.

It is an arithmetic number, because the mean of its divisors is an integer number (13184757456).

Almost surely, 2^200802525561 is an apocalyptic number.

It is an amenable number.

200802525561 is a deficient number, since it is larger than the sum of its proper divisors (115631653383).

200802525561 is a wasteful number, since it uses less digits than its factorization.

200802525561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115901 (or 115898 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The spelling of 200802525561 in words is "two hundred billion, eight hundred two million, five hundred twenty-five thousand, five hundred sixty-one".