1055566065 has 8 divisors (see below), whose sum is σ = 1688905728. Its totient is φ = 562968560.

The previous prime is 1055566063. The next prime is 1055566069. The reversal of 1055566065 is 5606655501.

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

It is not a de Polignac number, because 1055566065 - 2¹ = 1055566063 is a prime.

It is a super-2 number, since 2×1055566065² = 2228439435159168450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1055566063) 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, 35185521 + ... + 35185550.

It is an arithmetic number, because the mean of its divisors is an integer number (211113216).

Almost surely, 2^1055566065 is an apocalyptic number.

1055566065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1055566065 is a deficient number, since it is larger than the sum of its proper divisors (633339663).

1055566065 is an equidigital number, since it uses as much as digits as its factorization.

1055566065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70371079.

The product of its (nonzero) digits is 135000, while the sum is 39.

The square root of 1055566065 is about 32489.4762192314. The cubic root of 1055566065 is about 1018.1891698301.

The spelling of 1055566065 in words is "one billion, fifty-five million, five hundred sixty-six thousand, sixty-five".