1057660556 has 6 divisors (see below), whose sum is σ = 1850905980. Its totient is φ = 528830276.

The previous prime is 1057660507. The next prime is 1057660561. The reversal of 1057660556 is 6550667501.

It is a super-2 number, since 2×1057660556² = 2237291703436458272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132207566 + ... + 132207573.

It is an arithmetic number, because the mean of its divisors is an integer number (308484330).

Almost surely, 2^1057660556 is an apocalyptic number.

It is an amenable number.

1057660556 is a deficient number, since it is larger than the sum of its proper divisors (793245424).

1057660556 is a wasteful number, since it uses less digits than its factorization.

1057660556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264415143 (or 264415141 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 41.

The square root of 1057660556 is about 32521.6936213353. The cubic root of 1057660556 is about 1018.8621670517.

The spelling of 1057660556 in words is "one billion, fifty-seven million, six hundred sixty thousand, five hundred fifty-six".