201291571057 has 8 divisors (see below), whose sum is σ = 202080301416. Its totient is φ = 200503533312.

The previous prime is 201291571031. The next prime is 201291571073. The reversal of 201291571057 is 750175192102.

It can be written as a sum of positive squares in 4 ways, for example, as 41192355681 + 160099215376 = 202959^2 + 400124^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201291571057 - 2⁷ = 201291570929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201291571027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413113 + ... + 757129.

It is an arithmetic number, because the mean of its divisors is an integer number (25260037677).

Almost surely, 2^201291571057 is an apocalyptic number.

It is an amenable number.

201291571057 is a deficient number, since it is larger than the sum of its proper divisors (788730359).

201291571057 is a wasteful number, since it uses less digits than its factorization.

201291571057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346307.

The product of its (nonzero) digits is 44100, while the sum is 40.

The spelling of 201291571057 in words is "two hundred one billion, two hundred ninety-one million, five hundred seventy-one thousand, fifty-seven".