271220389557 has 16 divisors (see below), whose sum is σ = 389456473728. Its totient is φ = 166899792960.

The previous prime is 271220389529. The next prime is 271220389681. The reversal of 271220389557 is 755983022172.

It is not a de Polignac number, because 271220389557 - 2⁶ = 271220389493 is a prime.

It is a super-2 number, since 2×271220389557² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (271220389507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1510207 + ... + 1680227.

It is an arithmetic number, because the mean of its divisors is an integer number (24341029608).

Almost surely, 2^271220389557 is an apocalyptic number.

It is an amenable number.

271220389557 is a deficient number, since it is larger than the sum of its proper divisors (118236084171).

271220389557 is a wasteful number, since it uses less digits than its factorization.

271220389557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210940.

The product of its (nonzero) digits is 2116800, while the sum is 51.

The spelling of 271220389557 in words is "two hundred seventy-one billion, two hundred twenty million, three hundred eighty-nine thousand, five hundred fifty-seven".