201254617071 has 12 divisors (see below), whose sum is σ = 293579343720. Its totient is φ = 132841330800.

The previous prime is 201254617027. The next prime is 201254617087. The reversal of 201254617071 is 170716452102.

201254617071 is a `hidden beast` number, since 2 + 0 + 125 + 461 + 7 + 0 + 71 = 666.

It is not a de Polignac number, because 201254617071 - 2²² = 201250422767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201254610071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110700201 + ... + 110702018.

It is an arithmetic number, because the mean of its divisors is an integer number (24464945310).

Almost surely, 2^201254617071 is an apocalyptic number.

201254617071 is a deficient number, since it is larger than the sum of its proper divisors (92324726649).

201254617071 is a wasteful number, since it uses less digits than its factorization.

201254617071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221402326 (or 221402323 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The spelling of 201254617071 in words is "two hundred one billion, two hundred fifty-four million, six hundred seventeen thousand, seventy-one".