1055566266 has 32 divisors (see below), whose sum is σ = 2171836800. Its totient is φ = 341770176.

The previous prime is 1055566249. The next prime is 1055566271. The reversal of 1055566266 is 6626655501.

It is a super-2 number, since 2×1055566266² = 2228440283834365512, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139960 + ... + 147308.

It is an arithmetic number, because the mean of its divisors is an integer number (67869900).

Almost surely, 2^1055566266 is an apocalyptic number.

1055566266 is an abundant number, since it is smaller than the sum of its proper divisors (1116270534).

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

1055566266 is a wasteful number, since it uses less digits than its factorization.

1055566266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8038.

The product of its (nonzero) digits is 324000, while the sum is 42.

The square root of 1055566266 is about 32489.4793125405. The cubic root of 1055566266 is about 1018.1892344577.

The spelling of 1055566266 in words is "one billion, fifty-five million, five hundred sixty-six thousand, two hundred sixty-six".