1057566271540 has 48 divisors (see below), whose sum is σ = 2263630743360. Its totient is φ = 414917634560.

The previous prime is 1057566271513. The next prime is 1057566271561. The reversal of 1057566271540 is 451726657501.

It is a super-2 number, since 2×1057566271540² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 488821 + ... + 1534300.

It is an arithmetic number, because the mean of its divisors is an integer number (47158973820).

Almost surely, 2^{1057566271540} is an apocalyptic number.

1057566271540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1057566271540 is an abundant number, since it is smaller than the sum of its proper divisors (1206064471820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1057566271540 is a wasteful number, since it uses less digits than its factorization.

1057566271540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023632 (or 2023630 counting only the distinct ones).

The product of its (nonzero) digits is 1764000, while the sum is 49.

The spelling of 1057566271540 in words is "one trillion, fifty-seven billion, five hundred sixty-six million, two hundred seventy-one thousand, five hundred forty".